Home / 20,590.59-28,414.26-11,158.95

Finding the Fourth Proportional to 20,590.59, 28,414.26 and 11,158.95

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Solution

The fourth proportional to 20,590.59, 28,414.26 and 11,158.95 is: 15,398.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590.59 : 28,414.26 = 11,158.95 : x
  2. Step 2: Convert to fraction form
    20,590.59/28,414.26 = 11,158.95/x
  3. Step 3: Cross multiply
    20,590.59x = 28,414.26 × 11,158.95
  4. Step 4: Simplify right side
    20,590.59x = 317,073,306.63
  5. Step 5: Solve for x
    x = 317,073,306.63/20,590.59
  6. Step 6: Final answer
    x = 15,398.94

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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.