Home / 20,164.43-27,824.92-11,211.03

Finding the Fourth Proportional to 20,164.43, 27,824.92 and 11,211.03

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Solution

The fourth proportional to 20,164.43, 27,824.92 and 11,211.03 is: 15,470.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.43 : 27,824.92 = 11,211.03 : x
  2. Step 2: Convert to fraction form
    20,164.43/27,824.92 = 11,211.03/x
  3. Step 3: Cross multiply
    20,164.43x = 27,824.92 × 11,211.03
  4. Step 4: Simplify right side
    20,164.43x = 311,945,984.84
  5. Step 5: Solve for x
    x = 311,945,984.84/20,164.43
  6. Step 6: Final answer
    x = 15,470.11

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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.