Home / 42,278.46-63,412.17-15,979.78

Finding the Fourth Proportional to 42,278.46, 63,412.17 and 15,979.78

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Solution

The fourth proportional to 42,278.46, 63,412.17 and 15,979.78 is: 23,967.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,278.46 : 63,412.17 = 15,979.78 : x
  2. Step 2: Convert to fraction form
    42,278.46/63,412.17 = 15,979.78/x
  3. Step 3: Cross multiply
    42,278.46x = 63,412.17 × 15,979.78
  4. Step 4: Simplify right side
    42,278.46x = 1,013,312,545.26
  5. Step 5: Solve for x
    x = 1,013,312,545.26/42,278.46
  6. Step 6: Final answer
    x = 23,967.59

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1.5x scale

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.