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Finding the Fourth Proportional to 25,600.95, 38,405.48 and 8,960.58

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Solution

The fourth proportional to 25,600.95, 38,405.48 and 8,960.58 is: 13,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,600.95 : 38,405.48 = 8,960.58 : x
  2. Step 2: Convert to fraction form
    25,600.95/38,405.48 = 8,960.58/x
  3. Step 3: Cross multiply
    25,600.95x = 38,405.48 × 8,960.58
  4. Step 4: Simplify right side
    25,600.95x = 344,135,331.18
  5. Step 5: Solve for x
    x = 344,135,331.18/25,600.95
  6. Step 6: Final answer
    x = 13,442.29

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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.