Home / 20,161.92-30,245.31-8,473.62

Finding the Fourth Proportional to 20,161.92, 30,245.31 and 8,473.62

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Solution

The fourth proportional to 20,161.92, 30,245.31 and 8,473.62 is: 12,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.92 : 30,245.31 = 8,473.62 : x
  2. Step 2: Convert to fraction form
    20,161.92/30,245.31 = 8,473.62/x
  3. Step 3: Cross multiply
    20,161.92x = 30,245.31 × 8,473.62
  4. Step 4: Simplify right side
    20,161.92x = 256,287,263.72
  5. Step 5: Solve for x
    x = 256,287,263.72/20,161.92
  6. Step 6: Final answer
    x = 12,711.45

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Double scale
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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.