Home / 20,103.19-27,744.76-11,151.27

Finding the Fourth Proportional to 20,103.19, 27,744.76 and 11,151.27

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Solution

The fourth proportional to 20,103.19, 27,744.76 and 11,151.27 is: 15,390.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103.19 : 27,744.76 = 11,151.27 : x
  2. Step 2: Convert to fraction form
    20,103.19/27,744.76 = 11,151.27/x
  3. Step 3: Cross multiply
    20,103.19x = 27,744.76 × 11,151.27
  4. Step 4: Simplify right side
    20,103.19x = 309,389,230.33
  5. Step 5: Solve for x
    x = 309,389,230.33/20,103.19
  6. Step 6: Final answer
    x = 15,390.06

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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.