Home / 22,670.80-31,286.92-13,244.88

Finding the Fourth Proportional to 22,670.80, 31,286.92 and 13,244.88

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Solution

The fourth proportional to 22,670.80, 31,286.92 and 13,244.88 is: 18,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,670.80 : 31,286.92 = 13,244.88 : x
  2. Step 2: Convert to fraction form
    22,670.80/31,286.92 = 13,244.88/x
  3. Step 3: Cross multiply
    22,670.80x = 31,286.92 × 13,244.88
  4. Step 4: Simplify right side
    22,670.80x = 414,391,500.97
  5. Step 5: Solve for x
    x = 414,391,500.97/22,670.80
  6. Step 6: Final answer
    x = 18,278.64

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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.