Home / 13,882.78-20,819.13-4,020.04

Finding the Fourth Proportional to 13,882.78, 20,819.13 and 4,020.04

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Solution

The fourth proportional to 13,882.78, 20,819.13 and 4,020.04 is: 6,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,882.78 : 20,819.13 = 4,020.04 : x
  2. Step 2: Convert to fraction form
    13,882.78/20,819.13 = 4,020.04/x
  3. Step 3: Cross multiply
    13,882.78x = 20,819.13 × 4,020.04
  4. Step 4: Simplify right side
    13,882.78x = 83,693,735.37
  5. Step 5: Solve for x
    x = 83,693,735.37/13,882.78
  6. Step 6: Final answer
    x = 6,028.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.