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Finding the Fourth Proportional to 20,025.92, 30,037.80 and 10,164.92

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Solution

The fourth proportional to 20,025.92, 30,037.80 and 10,164.92 is: 15,246.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.92 : 30,037.80 = 10,164.92 : x
  2. Step 2: Convert to fraction form
    20,025.92/30,037.80 = 10,164.92/x
  3. Step 3: Cross multiply
    20,025.92x = 30,037.80 × 10,164.92
  4. Step 4: Simplify right side
    20,025.92x = 305,331,833.98
  5. Step 5: Solve for x
    x = 305,331,833.98/20,025.92
  6. Step 6: Final answer
    x = 15,246.83

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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.