Home / 21,517.56-29,694.25-12,086.13

Finding the Fourth Proportional to 21,517.56, 29,694.25 and 12,086.13

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Solution

The fourth proportional to 21,517.56, 29,694.25 and 12,086.13 is: 16,678.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,517.56 : 29,694.25 = 12,086.13 : x
  2. Step 2: Convert to fraction form
    21,517.56/29,694.25 = 12,086.13/x
  3. Step 3: Cross multiply
    21,517.56x = 29,694.25 × 12,086.13
  4. Step 4: Simplify right side
    21,517.56x = 358,888,565.75
  5. Step 5: Solve for x
    x = 358,888,565.75/21,517.56
  6. Step 6: Final answer
    x = 16,678.87

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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.