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Finding the Fourth Proportional to 25,226.88, 34,816.56 and 15,290.88

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Solution

The fourth proportional to 25,226.88, 34,816.56 and 15,290.88 is: 21,103.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,226.88 : 34,816.56 = 15,290.88 : x
  2. Step 2: Convert to fraction form
    25,226.88/34,816.56 = 15,290.88/x
  3. Step 3: Cross multiply
    25,226.88x = 34,816.56 × 15,290.88
  4. Step 4: Simplify right side
    25,226.88x = 532,375,840.97
  5. Step 5: Solve for x
    x = 532,375,840.97/25,226.88
  6. Step 6: Final answer
    x = 21,103.52

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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.