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Finding the Fourth Proportional to 25,087, 34,620.06 and 13,909

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Solution

The fourth proportional to 25,087, 34,620.06 and 13,909 is: 19,194.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,087 : 34,620.06 = 13,909 : x
  2. Step 2: Convert to fraction form
    25,087/34,620.06 = 13,909/x
  3. Step 3: Cross multiply
    25,087x = 34,620.06 × 13,909
  4. Step 4: Simplify right side
    25,087x = 481,530,414.54
  5. Step 5: Solve for x
    x = 481,530,414.54/25,087
  6. Step 6: Final answer
    x = 19,194.42

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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.