Home / 20,498.92-28,288.61-11,546.55

Finding the Fourth Proportional to 20,498.92, 28,288.61 and 11,546.55

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Solution

The fourth proportional to 20,498.92, 28,288.61 and 11,546.55 is: 15,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498.92 : 28,288.61 = 11,546.55 : x
  2. Step 2: Convert to fraction form
    20,498.92/28,288.61 = 11,546.55/x
  3. Step 3: Cross multiply
    20,498.92x = 28,288.61 × 11,546.55
  4. Step 4: Simplify right side
    20,498.92x = 326,635,849.80
  5. Step 5: Solve for x
    x = 326,635,849.80/20,498.92
  6. Step 6: Final answer
    x = 15,934.30

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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.