Home / 20,591.24-30,882.12-12,273.60

Finding the Fourth Proportional to 20,591.24, 30,882.12 and 12,273.60

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Solution

The fourth proportional to 20,591.24, 30,882.12 and 12,273.60 is: 18,407.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,591.24 : 30,882.12 = 12,273.60 : x
  2. Step 2: Convert to fraction form
    20,591.24/30,882.12 = 12,273.60/x
  3. Step 3: Cross multiply
    20,591.24x = 30,882.12 × 12,273.60
  4. Step 4: Simplify right side
    20,591.24x = 379,034,788.03
  5. Step 5: Solve for x
    x = 379,034,788.03/20,591.24
  6. Step 6: Final answer
    x = 18,407.57

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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.