Answer: Option 'C' is correct for the question .
Explanation:
Since we have given that
3:8=x:32
the value of x will be

A) 8:3=32:x
The value of x will be

B) 3:x=8:32
The value of x will be

C) x:8=3:32
The value of x will be

Hence , Option 'C' is correct for the question .