Home / 20,160.64-27,819.46-11,662.92

Finding the Fourth Proportional to 20,160.64, 27,819.46 and 11,662.92

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Solution

The fourth proportional to 20,160.64, 27,819.46 and 11,662.92 is: 16,093.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.64 : 27,819.46 = 11,662.92 : x
  2. Step 2: Convert to fraction form
    20,160.64/27,819.46 = 11,662.92/x
  3. Step 3: Cross multiply
    20,160.64x = 27,819.46 × 11,662.92
  4. Step 4: Simplify right side
    20,160.64x = 324,456,136.42
  5. Step 5: Solve for x
    x = 324,456,136.42/20,160.64
  6. Step 6: Final answer
    x = 16,093.54

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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.