Home / 20,134.44-27,784.26-11,181.42

Finding the Fourth Proportional to 20,134.44, 27,784.26 and 11,181.42

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Solution

The fourth proportional to 20,134.44, 27,784.26 and 11,181.42 is: 15,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.44 : 27,784.26 = 11,181.42 : x
  2. Step 2: Convert to fraction form
    20,134.44/27,784.26 = 11,181.42/x
  3. Step 3: Cross multiply
    20,134.44x = 27,784.26 × 11,181.42
  4. Step 4: Simplify right side
    20,134.44x = 310,667,480.45
  5. Step 5: Solve for x
    x = 310,667,480.45/20,134.44
  6. Step 6: Final answer
    x = 15,429.66

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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.