Home / 20,497.92-28,287.23-11,545.55

Finding the Fourth Proportional to 20,497.92, 28,287.23 and 11,545.55

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Solution

The fourth proportional to 20,497.92, 28,287.23 and 11,545.55 is: 15,932.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,497.92 : 28,287.23 = 11,545.55 : x
  2. Step 2: Convert to fraction form
    20,497.92/28,287.23 = 11,545.55/x
  3. Step 3: Cross multiply
    20,497.92x = 28,287.23 × 11,545.55
  4. Step 4: Simplify right side
    20,497.92x = 326,591,628.33
  5. Step 5: Solve for x
    x = 326,591,628.33/20,497.92
  6. Step 6: Final answer
    x = 15,932.92

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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.