Home / 20,249.09-27,943.56-11,174.54

Finding the Fourth Proportional to 20,249.09, 27,943.56 and 11,174.54

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Solution

The fourth proportional to 20,249.09, 27,943.56 and 11,174.54 is: 15,420.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.09 : 27,943.56 = 11,174.54 : x
  2. Step 2: Convert to fraction form
    20,249.09/27,943.56 = 11,174.54/x
  3. Step 3: Cross multiply
    20,249.09x = 27,943.56 × 11,174.54
  4. Step 4: Simplify right side
    20,249.09x = 312,256,289.24
  5. Step 5: Solve for x
    x = 312,256,289.24/20,249.09
  6. Step 6: Final answer
    x = 15,420.76

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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.