Home / 20,247.38-27,943.82-11,863.88

Finding the Fourth Proportional to 20,247.38, 27,943.82 and 11,863.88

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Solution

The fourth proportional to 20,247.38, 27,943.82 and 11,863.88 is: 16,373.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.38 : 27,943.82 = 11,863.88 : x
  2. Step 2: Convert to fraction form
    20,247.38/27,943.82 = 11,863.88/x
  3. Step 3: Cross multiply
    20,247.38x = 27,943.82 × 11,863.88
  4. Step 4: Simplify right side
    20,247.38x = 331,522,127.22
  5. Step 5: Solve for x
    x = 331,522,127.22/20,247.38
  6. Step 6: Final answer
    x = 16,373.58

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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.