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Finding the Fourth Proportional to 22,378.92, 33,538.11 and 8,520.36

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Solution

The fourth proportional to 22,378.92, 33,538.11 and 8,520.36 is: 12,769.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378.92 : 33,538.11 = 8,520.36 : x
  2. Step 2: Convert to fraction form
    22,378.92/33,538.11 = 8,520.36/x
  3. Step 3: Cross multiply
    22,378.92x = 33,538.11 × 8,520.36
  4. Step 4: Simplify right side
    22,378.92x = 285,756,770.92
  5. Step 5: Solve for x
    x = 285,756,770.92/22,378.92
  6. Step 6: Final answer
    x = 12,769.02

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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.