Home / 22,929.11-31,660.86-18,680.87

Finding the Fourth Proportional to 22,929.11, 31,660.86 and 18,680.87

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Solution

The fourth proportional to 22,929.11, 31,660.86 and 18,680.87 is: 25,794.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,929.11 : 31,660.86 = 18,680.87 : x
  2. Step 2: Convert to fraction form
    22,929.11/31,660.86 = 18,680.87/x
  3. Step 3: Cross multiply
    22,929.11x = 31,660.86 × 18,680.87
  4. Step 4: Simplify right side
    22,929.11x = 591,452,251.44
  5. Step 5: Solve for x
    x = 591,452,251.44/22,929.11
  6. Step 6: Final answer
    x = 25,794.83

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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.