Home / 22,708.38-31,338.06-12,637.20

Finding the Fourth Proportional to 22,708.38, 31,338.06 and 12,637.20

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Solution

The fourth proportional to 22,708.38, 31,338.06 and 12,637.20 is: 17,439.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,708.38 : 31,338.06 = 12,637.20 : x
  2. Step 2: Convert to fraction form
    22,708.38/31,338.06 = 12,637.20/x
  3. Step 3: Cross multiply
    22,708.38x = 31,338.06 × 12,637.20
  4. Step 4: Simplify right side
    22,708.38x = 396,025,331.83
  5. Step 5: Solve for x
    x = 396,025,331.83/22,708.38
  6. Step 6: Final answer
    x = 17,439.61

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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.