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Finding the Fourth Proportional to 28,508.60, 42,714.30 and 23,551.40

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Solution

The fourth proportional to 28,508.60, 42,714.30 and 23,551.40 is: 35,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.60 : 42,714.30 = 23,551.40 : x
  2. Step 2: Convert to fraction form
    28,508.60/42,714.30 = 23,551.40/x
  3. Step 3: Cross multiply
    28,508.60x = 42,714.30 × 23,551.40
  4. Step 4: Simplify right side
    28,508.60x = 1,005,981,565.02
  5. Step 5: Solve for x
    x = 1,005,981,565.02/28,508.60
  6. Step 6: Final answer
    x = 35,286.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.