Home / 20,164.76-30,205.53-11,819.44

Finding the Fourth Proportional to 20,164.76, 30,205.53 and 11,819.44

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Solution

The fourth proportional to 20,164.76, 30,205.53 and 11,819.44 is: 17,704.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.76 : 30,205.53 = 11,819.44 : x
  2. Step 2: Convert to fraction form
    20,164.76/30,205.53 = 11,819.44/x
  3. Step 3: Cross multiply
    20,164.76x = 30,205.53 × 11,819.44
  4. Step 4: Simplify right side
    20,164.76x = 357,012,350.60
  5. Step 5: Solve for x
    x = 357,012,350.60/20,164.76
  6. Step 6: Final answer
    x = 17,704.76

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1.5x scale

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.