Home / 22,126.97-30,520.04-13,167.56

Finding the Fourth Proportional to 22,126.97, 30,520.04 and 13,167.56

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Solution

The fourth proportional to 22,126.97, 30,520.04 and 13,167.56 is: 18,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,126.97 : 30,520.04 = 13,167.56 : x
  2. Step 2: Convert to fraction form
    22,126.97/30,520.04 = 13,167.56/x
  3. Step 3: Cross multiply
    22,126.97x = 30,520.04 × 13,167.56
  4. Step 4: Simplify right side
    22,126.97x = 401,874,542.43
  5. Step 5: Solve for x
    x = 401,874,542.43/22,126.97
  6. Step 6: Final answer
    x = 18,162.20

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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.