Home / 20,059.49-27,679.92-11,105.57

Finding the Fourth Proportional to 20,059.49, 27,679.92 and 11,105.57

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Solution

The fourth proportional to 20,059.49, 27,679.92 and 11,105.57 is: 15,324.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.49 : 27,679.92 = 11,105.57 : x
  2. Step 2: Convert to fraction form
    20,059.49/27,679.92 = 11,105.57/x
  3. Step 3: Cross multiply
    20,059.49x = 27,679.92 × 11,105.57
  4. Step 4: Simplify right side
    20,059.49x = 307,401,289.15
  5. Step 5: Solve for x
    x = 307,401,289.15/20,059.49
  6. Step 6: Final answer
    x = 15,324.48

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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.