Home / 21,286.92-29,375.60-11,727.71

Finding the Fourth Proportional to 21,286.92, 29,375.60 and 11,727.71

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Solution

The fourth proportional to 21,286.92, 29,375.60 and 11,727.71 is: 16,184.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286.92 : 29,375.60 = 11,727.71 : x
  2. Step 2: Convert to fraction form
    21,286.92/29,375.60 = 11,727.71/x
  3. Step 3: Cross multiply
    21,286.92x = 29,375.60 × 11,727.71
  4. Step 4: Simplify right side
    21,286.92x = 344,508,422.52
  5. Step 5: Solve for x
    x = 344,508,422.52/21,286.92
  6. Step 6: Final answer
    x = 16,184.04

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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.