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Finding the Fourth Proportional to 17,086.78, 25,630.17 and 15,583.42

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Solution

The fourth proportional to 17,086.78, 25,630.17 and 15,583.42 is: 23,375.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,086.78 : 25,630.17 = 15,583.42 : x
  2. Step 2: Convert to fraction form
    17,086.78/25,630.17 = 15,583.42/x
  3. Step 3: Cross multiply
    17,086.78x = 25,630.17 × 15,583.42
  4. Step 4: Simplify right side
    17,086.78x = 399,405,703.78
  5. Step 5: Solve for x
    x = 399,405,703.78/17,086.78
  6. Step 6: Final answer
    x = 23,375.13

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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.