Home / 20,074.52-27,704.40-11,122.85

Finding the Fourth Proportional to 20,074.52, 27,704.40 and 11,122.85

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Solution

The fourth proportional to 20,074.52, 27,704.40 and 11,122.85 is: 15,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.52 : 27,704.40 = 11,122.85 : x
  2. Step 2: Convert to fraction form
    20,074.52/27,704.40 = 11,122.85/x
  3. Step 3: Cross multiply
    20,074.52x = 27,704.40 × 11,122.85
  4. Step 4: Simplify right side
    20,074.52x = 308,151,885.54
  5. Step 5: Solve for x
    x = 308,151,885.54/20,074.52
  6. Step 6: Final answer
    x = 15,350.40

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1.5x scale

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.