Home / 42,013.13-57,979.35-23,151.47

Finding the Fourth Proportional to 42,013.13, 57,979.35 and 23,151.47

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Solution

The fourth proportional to 42,013.13, 57,979.35 and 23,151.47 is: 31,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,013.13 : 57,979.35 = 23,151.47 : x
  2. Step 2: Convert to fraction form
    42,013.13/57,979.35 = 23,151.47/x
  3. Step 3: Cross multiply
    42,013.13x = 57,979.35 × 23,151.47
  4. Step 4: Simplify right side
    42,013.13x = 1,342,306,892.25
  5. Step 5: Solve for x
    x = 1,342,306,892.25/42,013.13
  6. Step 6: Final answer
    x = 31,949.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.