Home / 22,520.39-31,078.13-13,568.27

Finding the Fourth Proportional to 22,520.39, 31,078.13 and 13,568.27

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Solution

The fourth proportional to 22,520.39, 31,078.13 and 13,568.27 is: 18,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,520.39 : 31,078.13 = 13,568.27 : x
  2. Step 2: Convert to fraction form
    22,520.39/31,078.13 = 13,568.27/x
  3. Step 3: Cross multiply
    22,520.39x = 31,078.13 × 13,568.27
  4. Step 4: Simplify right side
    22,520.39x = 421,676,235.70
  5. Step 5: Solve for x
    x = 421,676,235.70/22,520.39
  6. Step 6: Final answer
    x = 18,724.20

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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.