Home / 20,169.59-27,833.13-11,217.92

Finding the Fourth Proportional to 20,169.59, 27,833.13 and 11,217.92

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Solution

The fourth proportional to 20,169.59, 27,833.13 and 11,217.92 is: 15,480.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.59 : 27,833.13 = 11,217.92 : x
  2. Step 2: Convert to fraction form
    20,169.59/27,833.13 = 11,217.92/x
  3. Step 3: Cross multiply
    20,169.59x = 27,833.13 × 11,217.92
  4. Step 4: Simplify right side
    20,169.59x = 312,229,686.52
  5. Step 5: Solve for x
    x = 312,229,686.52/20,169.59
  6. Step 6: Final answer
    x = 15,480.22

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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.