Finding the Fourth Proportional to 42.08, 63.12 and 15.02
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Solution
The fourth proportional to 42.08, 63.12 and 15.02 is: 22.53
Step by Step Solution
- Step 1: Write the proportion equation
42.08 : 63.12 = 15.02 : x - Step 2: Convert to fraction form
42.08/63.12 = 15.02/x - Step 3: Cross multiply
42.08x = 63.12 × 15.02 - Step 4: Simplify right side
42.08x = 948.06 - Step 5: Solve for x
x = 948.06/42.08 - Step 6: Final answer
x = 22.53
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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.