Home / 38,687.76-58,067.28-29,978.64

Finding the Fourth Proportional to 38,687.76, 58,067.28 and 29,978.64

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Solution

The fourth proportional to 38,687.76, 58,067.28 and 29,978.64 is: 44,995.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,687.76 : 58,067.28 = 29,978.64 : x
  2. Step 2: Convert to fraction form
    38,687.76/58,067.28 = 29,978.64/x
  3. Step 3: Cross multiply
    38,687.76x = 58,067.28 × 29,978.64
  4. Step 4: Simplify right side
    38,687.76x = 1,740,778,082.90
  5. Step 5: Solve for x
    x = 1,740,778,082.90/38,687.76
  6. Step 6: Final answer
    x = 44,995.58

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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.