Home / 22,731.62-31,370.18-12,660.75

Finding the Fourth Proportional to 22,731.62, 31,370.18 and 12,660.75

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Solution

The fourth proportional to 22,731.62, 31,370.18 and 12,660.75 is: 17,472.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,731.62 : 31,370.18 = 12,660.75 : x
  2. Step 2: Convert to fraction form
    22,731.62/31,370.18 = 12,660.75/x
  3. Step 3: Cross multiply
    22,731.62x = 31,370.18 × 12,660.75
  4. Step 4: Simplify right side
    22,731.62x = 397,169,943.13
  5. Step 5: Solve for x
    x = 397,169,943.13/22,731.62
  6. Step 6: Final answer
    x = 17,472.14

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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.