Home / 21,587.20-29,788.17-12,632.92

Finding the Fourth Proportional to 21,587.20, 29,788.17 and 12,632.92

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Solution

The fourth proportional to 21,587.20, 29,788.17 and 12,632.92 is: 17,432.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,587.20 : 29,788.17 = 12,632.92 : x
  2. Step 2: Convert to fraction form
    21,587.20/29,788.17 = 12,632.92/x
  3. Step 3: Cross multiply
    21,587.20x = 29,788.17 × 12,632.92
  4. Step 4: Simplify right side
    21,587.20x = 376,311,568.56
  5. Step 5: Solve for x
    x = 376,311,568.56/21,587.20
  6. Step 6: Final answer
    x = 17,432.16

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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.