Home / 27,140.18-40,711.62-8,432.96

Finding the Fourth Proportional to 27,140.18, 40,711.62 and 8,432.96

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Solution

The fourth proportional to 27,140.18, 40,711.62 and 8,432.96 is: 12,649.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,140.18 : 40,711.62 = 8,432.96 : x
  2. Step 2: Convert to fraction form
    27,140.18/40,711.62 = 8,432.96/x
  3. Step 3: Cross multiply
    27,140.18x = 40,711.62 × 8,432.96
  4. Step 4: Simplify right side
    27,140.18x = 343,319,463.00
  5. Step 5: Solve for x
    x = 343,319,463.00/27,140.18
  6. Step 6: Final answer
    x = 12,649.86

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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.