Home / 22,987.60-31,721.92-14,929.36

Finding the Fourth Proportional to 22,987.60, 31,721.92 and 14,929.36

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Solution

The fourth proportional to 22,987.60, 31,721.92 and 14,929.36 is: 20,601.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,987.60 : 31,721.92 = 14,929.36 : x
  2. Step 2: Convert to fraction form
    22,987.60/31,721.92 = 14,929.36/x
  3. Step 3: Cross multiply
    22,987.60x = 31,721.92 × 14,929.36
  4. Step 4: Simplify right side
    22,987.60x = 473,587,963.57
  5. Step 5: Solve for x
    x = 473,587,963.57/22,987.60
  6. Step 6: Final answer
    x = 20,601.89

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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.