Home / 20,104.76-27,745.49-11,151.73

Finding the Fourth Proportional to 20,104.76, 27,745.49 and 11,151.73

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Solution

The fourth proportional to 20,104.76, 27,745.49 and 11,151.73 is: 15,389.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.76 : 27,745.49 = 11,151.73 : x
  2. Step 2: Convert to fraction form
    20,104.76/27,745.49 = 11,151.73/x
  3. Step 3: Cross multiply
    20,104.76x = 27,745.49 × 11,151.73
  4. Step 4: Simplify right side
    20,104.76x = 309,410,213.20
  5. Step 5: Solve for x
    x = 309,410,213.20/20,104.76
  6. Step 6: Final answer
    x = 15,389.90

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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.