Finding the Fourth Proportional to 32.49, 48.78 and 27.99
Calculator
Solution
The fourth proportional to 32.49, 48.78 and 27.99 is: 42.02
Step by Step Solution
- Step 1: Write the proportion equation
32.49 : 48.78 = 27.99 : x - Step 2: Convert to fraction form
32.49/48.78 = 27.99/x - Step 3: Cross multiply
32.49x = 48.78 × 27.99 - Step 4: Simplify right side
32.49x = 1,365.35 - Step 5: Solve for x
x = 1,365.35/32.49 - Step 6: Final answer
x = 42.02
Related Problems
Find fourth proportional to 16.25, 24.39 and 14.00
Half scale
Find fourth proportional to 64.98, 97.56 and 55.98
Double scale
Find fourth proportional to 33.49, 50.28 and 28.99
Similar ratio
Find fourth proportional to 48.74, 73.17 and 41.99
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.