Home / 20,238.47-27,929.09-11,854.97

Finding the Fourth Proportional to 20,238.47, 27,929.09 and 11,854.97

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Solution

The fourth proportional to 20,238.47, 27,929.09 and 11,854.97 is: 16,359.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.47 : 27,929.09 = 11,854.97 : x
  2. Step 2: Convert to fraction form
    20,238.47/27,929.09 = 11,854.97/x
  3. Step 3: Cross multiply
    20,238.47x = 27,929.09 × 11,854.97
  4. Step 4: Simplify right side
    20,238.47x = 331,098,623.54
  5. Step 5: Solve for x
    x = 331,098,623.54/20,238.47
  6. Step 6: Final answer
    x = 16,359.86

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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.