Home / 25,691.18-38,449.22-21,535.88

Finding the Fourth Proportional to 25,691.18, 38,449.22 and 21,535.88

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Solution

The fourth proportional to 25,691.18, 38,449.22 and 21,535.88 is: 32,230.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.18 : 38,449.22 = 21,535.88 : x
  2. Step 2: Convert to fraction form
    25,691.18/38,449.22 = 21,535.88/x
  3. Step 3: Cross multiply
    25,691.18x = 38,449.22 × 21,535.88
  4. Step 4: Simplify right side
    25,691.18x = 828,037,488.09
  5. Step 5: Solve for x
    x = 828,037,488.09/25,691.18
  6. Step 6: Final answer
    x = 32,230.42

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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.