Home / 22,642.88-31,247.17-13,209.62

Finding the Fourth Proportional to 22,642.88, 31,247.17 and 13,209.62

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Solution

The fourth proportional to 22,642.88, 31,247.17 and 13,209.62 is: 18,229.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,642.88 : 31,247.17 = 13,209.62 : x
  2. Step 2: Convert to fraction form
    22,642.88/31,247.17 = 13,209.62/x
  3. Step 3: Cross multiply
    22,642.88x = 31,247.17 × 13,209.62
  4. Step 4: Simplify right side
    22,642.88x = 412,763,052.52
  5. Step 5: Solve for x
    x = 412,763,052.52/22,642.88
  6. Step 6: Final answer
    x = 18,229.27

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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.