Home / 39,470.52-54,468.69-21,565.15

Finding the Fourth Proportional to 39,470.52, 54,468.69 and 21,565.15

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Solution

The fourth proportional to 39,470.52, 54,468.69 and 21,565.15 is: 29,759.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,470.52 : 54,468.69 = 21,565.15 : x
  2. Step 2: Convert to fraction form
    39,470.52/54,468.69 = 21,565.15/x
  3. Step 3: Cross multiply
    39,470.52x = 54,468.69 × 21,565.15
  4. Step 4: Simplify right side
    39,470.52x = 1,174,625,089.98
  5. Step 5: Solve for x
    x = 1,174,625,089.98/39,470.52
  6. Step 6: Final answer
    x = 29,759.55

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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.