Home / 22,217.64-30,660.36-12,145.92

Finding the Fourth Proportional to 22,217.64, 30,660.36 and 12,145.92

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Solution

The fourth proportional to 22,217.64, 30,660.36 and 12,145.92 is: 16,761.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.64 : 30,660.36 = 12,145.92 : x
  2. Step 2: Convert to fraction form
    22,217.64/30,660.36 = 12,145.92/x
  3. Step 3: Cross multiply
    22,217.64x = 30,660.36 × 12,145.92
  4. Step 4: Simplify right side
    22,217.64x = 372,398,279.73
  5. Step 5: Solve for x
    x = 372,398,279.73/22,217.64
  6. Step 6: Final answer
    x = 16,761.38

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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.