Home / 28,432.56-42,658.27-8,711.31

Finding the Fourth Proportional to 28,432.56, 42,658.27 and 8,711.31

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Solution

The fourth proportional to 28,432.56, 42,658.27 and 8,711.31 is: 13,069.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.56 : 42,658.27 = 8,711.31 : x
  2. Step 2: Convert to fraction form
    28,432.56/42,658.27 = 8,711.31/x
  3. Step 3: Cross multiply
    28,432.56x = 42,658.27 × 8,711.31
  4. Step 4: Simplify right side
    28,432.56x = 371,609,414.03
  5. Step 5: Solve for x
    x = 371,609,414.03/28,432.56
  6. Step 6: Final answer
    x = 13,069.85

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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.