Home / 22,712.97-31,343.87-12,641.18

Finding the Fourth Proportional to 22,712.97, 31,343.87 and 12,641.18

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Solution

The fourth proportional to 22,712.97, 31,343.87 and 12,641.18 is: 17,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,712.97 : 31,343.87 = 12,641.18 : x
  2. Step 2: Convert to fraction form
    22,712.97/31,343.87 = 12,641.18/x
  3. Step 3: Cross multiply
    22,712.97x = 31,343.87 × 12,641.18
  4. Step 4: Simplify right side
    22,712.97x = 396,223,377.45
  5. Step 5: Solve for x
    x = 396,223,377.45/22,712.97
  6. Step 6: Final answer
    x = 17,444.80

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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.