Finding the Fourth Proportional to 39,110.81, 58,631.11 and 14,144.99
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Solution
The fourth proportional to 39,110.81, 58,631.11 and 14,144.99 is: 21,204.78
Step by Step Solution
- Step 1: Write the proportion equation
39,110.81 : 58,631.11 = 14,144.99 : x - Step 2: Convert to fraction form
39,110.81/58,631.11 = 14,144.99/x - Step 3: Cross multiply
39,110.81x = 58,631.11 × 14,144.99 - Step 4: Simplify right side
39,110.81x = 829,336,136.12 - Step 5: Solve for x
x = 829,336,136.12/39,110.81 - Step 6: Final answer
x = 21,204.78
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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.