Home / 42,279.29-63,418.88-17,319.38

Finding the Fourth Proportional to 42,279.29, 63,418.88 and 17,319.38

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Solution

The fourth proportional to 42,279.29, 63,418.88 and 17,319.38 is: 25,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,279.29 : 63,418.88 = 17,319.38 : x
  2. Step 2: Convert to fraction form
    42,279.29/63,418.88 = 17,319.38/x
  3. Step 3: Cross multiply
    42,279.29x = 63,418.88 × 17,319.38
  4. Step 4: Simplify right side
    42,279.29x = 1,098,375,883.74
  5. Step 5: Solve for x
    x = 1,098,375,883.74/42,279.29
  6. Step 6: Final answer
    x = 25,979.06

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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.