Home / 20,104.94-27,745.36-11,151.90

Finding the Fourth Proportional to 20,104.94, 27,745.36 and 11,151.90

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Solution

The fourth proportional to 20,104.94, 27,745.36 and 11,151.90 is: 15,389.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.94 : 27,745.36 = 11,151.90 : x
  2. Step 2: Convert to fraction form
    20,104.94/27,745.36 = 11,151.90/x
  3. Step 3: Cross multiply
    20,104.94x = 27,745.36 × 11,151.90
  4. Step 4: Simplify right side
    20,104.94x = 309,413,452.30
  5. Step 5: Solve for x
    x = 309,413,452.30/20,104.94
  6. Step 6: Final answer
    x = 15,389.92

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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.