Verified Answer :

100%/x%=32.2/24.15
(100/x)x=(32.2/24.15)x       - we multiply both sides of the equation by x
100=1.33333333333*x       - we divide both sides of the equation by (1.33333333333) to get x
100/1.33333333333=x 
75=x 
x=75

now we have: 
24.15 is 75% of 32.2