Home / 25,754.28-38,594.16-12,591.78

Finding the Fourth Proportional to 25,754.28, 38,594.16 and 12,591.78

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Solution

The fourth proportional to 25,754.28, 38,594.16 and 12,591.78 is: 18,869.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,754.28 : 38,594.16 = 12,591.78 : x
  2. Step 2: Convert to fraction form
    25,754.28/38,594.16 = 12,591.78/x
  3. Step 3: Cross multiply
    25,754.28x = 38,594.16 × 12,591.78
  4. Step 4: Simplify right side
    25,754.28x = 485,969,172.00
  5. Step 5: Solve for x
    x = 485,969,172.00/25,754.28
  6. Step 6: Final answer
    x = 18,869.45

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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.