Home / 20,140.11-27,793.26-12,180.02

Finding the Fourth Proportional to 20,140.11, 27,793.26 and 12,180.02

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Solution

The fourth proportional to 20,140.11, 27,793.26 and 12,180.02 is: 16,808.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.11 : 27,793.26 = 12,180.02 : x
  2. Step 2: Convert to fraction form
    20,140.11/27,793.26 = 12,180.02/x
  3. Step 3: Cross multiply
    20,140.11x = 27,793.26 × 12,180.02
  4. Step 4: Simplify right side
    20,140.11x = 338,522,323.70
  5. Step 5: Solve for x
    x = 338,522,323.70/20,140.11
  6. Step 6: Final answer
    x = 16,808.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.