Home / 47,428.04-71,151.18-21,132.71

Finding the Fourth Proportional to 47,428.04, 71,151.18 and 21,132.71

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Solution

The fourth proportional to 47,428.04, 71,151.18 and 21,132.71 is: 31,703.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,428.04 : 71,151.18 = 21,132.71 : x
  2. Step 2: Convert to fraction form
    47,428.04/71,151.18 = 21,132.71/x
  3. Step 3: Cross multiply
    47,428.04x = 71,151.18 × 21,132.71
  4. Step 4: Simplify right side
    47,428.04x = 1,503,617,084.91
  5. Step 5: Solve for x
    x = 1,503,617,084.91/47,428.04
  6. Step 6: Final answer
    x = 31,703.12

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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.