Home / 41,020.70-61,531.05-13,318.70

Finding the Fourth Proportional to 41,020.70, 61,531.05 and 13,318.70

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Solution

The fourth proportional to 41,020.70, 61,531.05 and 13,318.70 is: 19,978.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,020.70 : 61,531.05 = 13,318.70 : x
  2. Step 2: Convert to fraction form
    41,020.70/61,531.05 = 13,318.70/x
  3. Step 3: Cross multiply
    41,020.70x = 61,531.05 × 13,318.70
  4. Step 4: Simplify right side
    41,020.70x = 819,513,287.98
  5. Step 5: Solve for x
    x = 819,513,287.98/41,020.70
  6. Step 6: Final answer
    x = 19,978.04

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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.