Home / 25,380.14-38,079.20-11,338.88

Finding the Fourth Proportional to 25,380.14, 38,079.20 and 11,338.88

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Solution

The fourth proportional to 25,380.14, 38,079.20 and 11,338.88 is: 17,012.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,380.14 : 38,079.20 = 11,338.88 : x
  2. Step 2: Convert to fraction form
    25,380.14/38,079.20 = 11,338.88/x
  3. Step 3: Cross multiply
    25,380.14x = 38,079.20 × 11,338.88
  4. Step 4: Simplify right side
    25,380.14x = 431,775,479.30
  5. Step 5: Solve for x
    x = 431,775,479.30/25,380.14
  6. Step 6: Final answer
    x = 17,012.34

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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.