Home / 13,817.44-20,722.36-3,819.80

Finding the Fourth Proportional to 13,817.44, 20,722.36 and 3,819.80

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Solution

The fourth proportional to 13,817.44, 20,722.36 and 3,819.80 is: 5,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.44 : 20,722.36 = 3,819.80 : x
  2. Step 2: Convert to fraction form
    13,817.44/20,722.36 = 3,819.80/x
  3. Step 3: Cross multiply
    13,817.44x = 20,722.36 × 3,819.80
  4. Step 4: Simplify right side
    13,817.44x = 79,155,270.73
  5. Step 5: Solve for x
    x = 79,155,270.73/13,817.44
  6. Step 6: Final answer
    x = 5,728.65

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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.