Home / 23,171.91-31,979.22-13,102.14

Finding the Fourth Proportional to 23,171.91, 31,979.22 and 13,102.14

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Solution

The fourth proportional to 23,171.91, 31,979.22 and 13,102.14 is: 18,082.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,171.91 : 31,979.22 = 13,102.14 : x
  2. Step 2: Convert to fraction form
    23,171.91/31,979.22 = 13,102.14/x
  3. Step 3: Cross multiply
    23,171.91x = 31,979.22 × 13,102.14
  4. Step 4: Simplify right side
    23,171.91x = 418,996,217.53
  5. Step 5: Solve for x
    x = 418,996,217.53/23,171.91
  6. Step 6: Final answer
    x = 18,082.08

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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.