By the power of Trigonometry!
We know the angle is 22. The height of the ramp is on the OPPOSITE side of the angle. The known length of 32 ft is the ADJACENT side of the angle.
Q: Which trig function relates OPP and ADJ?
A: It's tangent!
tan(angle) = opposite / adjacent
So, we can say that
tan(22) = opposite / 32
32tan(22) = opposite
With a calculator (make sure it is in degree mode!):
32*0.404 = opposite
12.928 ft = opposite
The height is 13 ft.