Home / 22,515.39-31,064.45-13,082.13

Finding the Fourth Proportional to 22,515.39, 31,064.45 and 13,082.13

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Solution

The fourth proportional to 22,515.39, 31,064.45 and 13,082.13 is: 18,049.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,515.39 : 31,064.45 = 13,082.13 : x
  2. Step 2: Convert to fraction form
    22,515.39/31,064.45 = 13,082.13/x
  3. Step 3: Cross multiply
    22,515.39x = 31,064.45 × 13,082.13
  4. Step 4: Simplify right side
    22,515.39x = 406,389,107.87
  5. Step 5: Solve for x
    x = 406,389,107.87/22,515.39
  6. Step 6: Final answer
    x = 18,049.39

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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.