Home / 20,104.48-27,745.36-11,152.97

Finding the Fourth Proportional to 20,104.48, 27,745.36 and 11,152.97

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Solution

The fourth proportional to 20,104.48, 27,745.36 and 11,152.97 is: 15,391.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.48 : 27,745.36 = 11,152.97 : x
  2. Step 2: Convert to fraction form
    20,104.48/27,745.36 = 11,152.97/x
  3. Step 3: Cross multiply
    20,104.48x = 27,745.36 × 11,152.97
  4. Step 4: Simplify right side
    20,104.48x = 309,443,001.11
  5. Step 5: Solve for x
    x = 309,443,001.11/20,104.48
  6. Step 6: Final answer
    x = 15,391.75

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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.