Home / 20,275.44-30,416.28-8,591.76

Finding the Fourth Proportional to 20,275.44, 30,416.28 and 8,591.76

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Solution

The fourth proportional to 20,275.44, 30,416.28 and 8,591.76 is: 12,888.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.44 : 30,416.28 = 8,591.76 : x
  2. Step 2: Convert to fraction form
    20,275.44/30,416.28 = 8,591.76/x
  3. Step 3: Cross multiply
    20,275.44x = 30,416.28 × 8,591.76
  4. Step 4: Simplify right side
    20,275.44x = 261,329,377.85
  5. Step 5: Solve for x
    x = 261,329,377.85/20,275.44
  6. Step 6: Final answer
    x = 12,888.96

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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.