Home / 25,422.11-38,147.30-11,381.57

Finding the Fourth Proportional to 25,422.11, 38,147.30 and 11,381.57

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Solution

The fourth proportional to 25,422.11, 38,147.30 and 11,381.57 is: 17,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,422.11 : 38,147.30 = 11,381.57 : x
  2. Step 2: Convert to fraction form
    25,422.11/38,147.30 = 11,381.57/x
  3. Step 3: Cross multiply
    25,422.11x = 38,147.30 × 11,381.57
  4. Step 4: Simplify right side
    25,422.11x = 434,175,917.62
  5. Step 5: Solve for x
    x = 434,175,917.62/25,422.11
  6. Step 6: Final answer
    x = 17,078.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.