Home / 25,432.12-38,151.42-12,947.86

Finding the Fourth Proportional to 25,432.12, 38,151.42 and 12,947.86

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Solution

The fourth proportional to 25,432.12, 38,151.42 and 12,947.86 is: 19,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,432.12 : 38,151.42 = 12,947.86 : x
  2. Step 2: Convert to fraction form
    25,432.12/38,151.42 = 12,947.86/x
  3. Step 3: Cross multiply
    25,432.12x = 38,151.42 × 12,947.86
  4. Step 4: Simplify right side
    25,432.12x = 493,979,244.96
  5. Step 5: Solve for x
    x = 493,979,244.96/25,432.12
  6. Step 6: Final answer
    x = 19,423.44

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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.