Home / 20,084.79-27,716.54-11,700.75

Finding the Fourth Proportional to 20,084.79, 27,716.54 and 11,700.75

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Solution

The fourth proportional to 20,084.79, 27,716.54 and 11,700.75 is: 16,146.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084.79 : 27,716.54 = 11,700.75 : x
  2. Step 2: Convert to fraction form
    20,084.79/27,716.54 = 11,700.75/x
  3. Step 3: Cross multiply
    20,084.79x = 27,716.54 × 11,700.75
  4. Step 4: Simplify right side
    20,084.79x = 324,304,246.90
  5. Step 5: Solve for x
    x = 324,304,246.90/20,084.79
  6. Step 6: Final answer
    x = 16,146.76

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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.