Home / 38,422.26-57,642.65-12,126.92

Finding the Fourth Proportional to 38,422.26, 57,642.65 and 12,126.92

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Solution

The fourth proportional to 38,422.26, 57,642.65 and 12,126.92 is: 18,193.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,422.26 : 57,642.65 = 12,126.92 : x
  2. Step 2: Convert to fraction form
    38,422.26/57,642.65 = 12,126.92/x
  3. Step 3: Cross multiply
    38,422.26x = 57,642.65 × 12,126.92
  4. Step 4: Simplify right side
    38,422.26x = 699,027,805.14
  5. Step 5: Solve for x
    x = 699,027,805.14/38,422.26
  6. Step 6: Final answer
    x = 18,193.30

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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.