Home / 25,752.28-38,591.16-12,589.78

Finding the Fourth Proportional to 25,752.28, 38,591.16 and 12,589.78

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Solution

The fourth proportional to 25,752.28, 38,591.16 and 12,589.78 is: 18,866.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,752.28 : 38,591.16 = 12,589.78 : x
  2. Step 2: Convert to fraction form
    25,752.28/38,591.16 = 12,589.78/x
  3. Step 3: Cross multiply
    25,752.28x = 38,591.16 × 12,589.78
  4. Step 4: Simplify right side
    25,752.28x = 485,854,214.34
  5. Step 5: Solve for x
    x = 485,854,214.34/25,752.28
  6. Step 6: Final answer
    x = 18,866.45

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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.