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Finding the Fourth Proportional to 20,065.92, 30,099.96 and 8,367.36

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Solution

The fourth proportional to 20,065.92, 30,099.96 and 8,367.36 is: 12,551.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.92 : 30,099.96 = 8,367.36 : x
  2. Step 2: Convert to fraction form
    20,065.92/30,099.96 = 8,367.36/x
  3. Step 3: Cross multiply
    20,065.92x = 30,099.96 × 8,367.36
  4. Step 4: Simplify right side
    20,065.92x = 251,857,201.31
  5. Step 5: Solve for x
    x = 251,857,201.31/20,065.92
  6. Step 6: Final answer
    x = 12,551.49

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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.