We assume, that the number 1000 is 100% - because it's the output value of the task. 2. We assume, that x is the value we are looking for. 3. If 1000 is 100%, so we can write it down as 1000=100%. 4. We know, that x is 32% of the output value, so we can write it down as x=32%. 5. Now we have two simple equations: 1) 1000=100% 2) x=32% where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that: 1000/x=100%/32% 6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for what is 32% of 1000
1000/x=100/32 (1000/x)x=(100/32)x - we multiply both sides of the equation by x 1000=3.125*x - we divide both sides of the equation by (3.125) to get x 1000/3.125=x 320=x x=320