Home / 39,470.79-54,469.05-21,565.41

Finding the Fourth Proportional to 39,470.79, 54,469.05 and 21,565.41

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Solution

The fourth proportional to 39,470.79, 54,469.05 and 21,565.41 is: 29,759.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,470.79 : 54,469.05 = 21,565.41 : x
  2. Step 2: Convert to fraction form
    39,470.79/54,469.05 = 21,565.41/x
  3. Step 3: Cross multiply
    39,470.79x = 54,469.05 × 21,565.41
  4. Step 4: Simplify right side
    39,470.79x = 1,174,647,395.56
  5. Step 5: Solve for x
    x = 1,174,647,395.56/39,470.79
  6. Step 6: Final answer
    x = 29,759.92

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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.