Home / 20,246.88-27,943.13-11,863.38

Finding the Fourth Proportional to 20,246.88, 27,943.13 and 11,863.38

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Solution

The fourth proportional to 20,246.88, 27,943.13 and 11,863.38 is: 16,372.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.88 : 27,943.13 = 11,863.38 : x
  2. Step 2: Convert to fraction form
    20,246.88/27,943.13 = 11,863.38/x
  3. Step 3: Cross multiply
    20,246.88x = 27,943.13 × 11,863.38
  4. Step 4: Simplify right side
    20,246.88x = 331,499,969.58
  5. Step 5: Solve for x
    x = 331,499,969.58/20,246.88
  6. Step 6: Final answer
    x = 16,372.89

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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.