Home / 20,635.92-30,923.54-12,193.74

Finding the Fourth Proportional to 20,635.92, 30,923.54 and 12,193.74

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Solution

The fourth proportional to 20,635.92, 30,923.54 and 12,193.74 is: 18,272.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.92 : 30,923.54 = 12,193.74 : x
  2. Step 2: Convert to fraction form
    20,635.92/30,923.54 = 12,193.74/x
  3. Step 3: Cross multiply
    20,635.92x = 30,923.54 × 12,193.74
  4. Step 4: Simplify right side
    20,635.92x = 377,073,545.67
  5. Step 5: Solve for x
    x = 377,073,545.67/20,635.92
  6. Step 6: Final answer
    x = 18,272.68

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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.