Home / 20,211.75-27,892.26-13,150.17

Finding the Fourth Proportional to 20,211.75, 27,892.26 and 13,150.17

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Solution

The fourth proportional to 20,211.75, 27,892.26 and 13,150.17 is: 18,147.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.75 : 27,892.26 = 13,150.17 : x
  2. Step 2: Convert to fraction form
    20,211.75/27,892.26 = 13,150.17/x
  3. Step 3: Cross multiply
    20,211.75x = 27,892.26 × 13,150.17
  4. Step 4: Simplify right side
    20,211.75x = 366,787,960.68
  5. Step 5: Solve for x
    x = 366,787,960.68/20,211.75
  6. Step 6: Final answer
    x = 18,147.26

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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.