Home / 20,084.60-27,716.46-11,132.12

Finding the Fourth Proportional to 20,084.60, 27,716.46 and 11,132.12

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Solution

The fourth proportional to 20,084.60, 27,716.46 and 11,132.12 is: 15,362.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084.60 : 27,716.46 = 11,132.12 : x
  2. Step 2: Convert to fraction form
    20,084.60/27,716.46 = 11,132.12/x
  3. Step 3: Cross multiply
    20,084.60x = 27,716.46 × 11,132.12
  4. Step 4: Simplify right side
    20,084.60x = 308,542,958.70
  5. Step 5: Solve for x
    x = 308,542,958.70/20,084.60
  6. Step 6: Final answer
    x = 15,362.17

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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.