Home / 20,164.26-27,824.94-11,211.60

Finding the Fourth Proportional to 20,164.26, 27,824.94 and 11,211.60

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Solution

The fourth proportional to 20,164.26, 27,824.94 and 11,211.60 is: 15,471.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.26 : 27,824.94 = 11,211.60 : x
  2. Step 2: Convert to fraction form
    20,164.26/27,824.94 = 11,211.60/x
  3. Step 3: Cross multiply
    20,164.26x = 27,824.94 × 11,211.60
  4. Step 4: Simplify right side
    20,164.26x = 311,962,097.30
  5. Step 5: Solve for x
    x = 311,962,097.30/20,164.26
  6. Step 6: Final answer
    x = 15,471.04

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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.