Home / 20,132.55-27,781.73-11,179.52

Finding the Fourth Proportional to 20,132.55, 27,781.73 and 11,179.52

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Solution

The fourth proportional to 20,132.55, 27,781.73 and 11,179.52 is: 15,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.55 : 27,781.73 = 11,179.52 : x
  2. Step 2: Convert to fraction form
    20,132.55/27,781.73 = 11,179.52/x
  3. Step 3: Cross multiply
    20,132.55x = 27,781.73 × 11,179.52
  4. Step 4: Simplify right side
    20,132.55x = 310,586,420.35
  5. Step 5: Solve for x
    x = 310,586,420.35/20,132.55
  6. Step 6: Final answer
    x = 15,427.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.