Home / 20,174.24-27,837.46-11,221.86

Finding the Fourth Proportional to 20,174.24, 27,837.46 and 11,221.86

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Solution

The fourth proportional to 20,174.24, 27,837.46 and 11,221.86 is: 15,484.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174.24 : 27,837.46 = 11,221.86 : x
  2. Step 2: Convert to fraction form
    20,174.24/27,837.46 = 11,221.86/x
  3. Step 3: Cross multiply
    20,174.24x = 27,837.46 × 11,221.86
  4. Step 4: Simplify right side
    20,174.24x = 312,388,078.88
  5. Step 5: Solve for x
    x = 312,388,078.88/20,174.24
  6. Step 6: Final answer
    x = 15,484.50

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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.