Home / 39,470.92-54,469.23-21,565.54

Finding the Fourth Proportional to 39,470.92, 54,469.23 and 21,565.54

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Solution

The fourth proportional to 39,470.92, 54,469.23 and 21,565.54 is: 29,760.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,470.92 : 54,469.23 = 21,565.54 : x
  2. Step 2: Convert to fraction form
    39,470.92/54,469.23 = 21,565.54/x
  3. Step 3: Cross multiply
    39,470.92x = 54,469.23 × 21,565.54
  4. Step 4: Simplify right side
    39,470.92x = 1,174,657,978.16
  5. Step 5: Solve for x
    x = 1,174,657,978.16/39,470.92
  6. Step 6: Final answer
    x = 29,760.09

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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.