Answer: The measure of FG = 20 inches.
Explanation:
Since we have given that
ABCD~ EFGH
where, AD = 45 in.
EH = 60 in.
BC = 15 in.
We need to find the measure of FG.
Since the quadrilateral ABCD is similar to EFGH, then the ratio of their corresponding sides will be equal.
So, it becomes,

Hence, the measure of FG = 20 inches.