Home / 38,456.92-53,067.18-21,459.88

Finding the Fourth Proportional to 38,456.92, 53,067.18 and 21,459.88

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Solution

The fourth proportional to 38,456.92, 53,067.18 and 21,459.88 is: 29,612.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,456.92 : 53,067.18 = 21,459.88 : x
  2. Step 2: Convert to fraction form
    38,456.92/53,067.18 = 21,459.88/x
  3. Step 3: Cross multiply
    38,456.92x = 53,067.18 × 21,459.88
  4. Step 4: Simplify right side
    38,456.92x = 1,138,815,314.74
  5. Step 5: Solve for x
    x = 1,138,815,314.74/38,456.92
  6. Step 6: Final answer
    x = 29,612.75

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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.