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Finding the Fourth Proportional to 25,419.32, 38,128.97 and 6,951.32

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Solution

The fourth proportional to 25,419.32, 38,128.97 and 6,951.32 is: 10,426.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,419.32 : 38,128.97 = 6,951.32 : x
  2. Step 2: Convert to fraction form
    25,419.32/38,128.97 = 6,951.32/x
  3. Step 3: Cross multiply
    25,419.32x = 38,128.97 × 6,951.32
  4. Step 4: Simplify right side
    25,419.32x = 265,046,481.10
  5. Step 5: Solve for x
    x = 265,046,481.10/25,419.32
  6. Step 6: Final answer
    x = 10,426.97

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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.