Home / 20,350.62-30,537.27-10,990.44

Finding the Fourth Proportional to 20,350.62, 30,537.27 and 10,990.44

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Solution

The fourth proportional to 20,350.62, 30,537.27 and 10,990.44 is: 16,491.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,350.62 : 30,537.27 = 10,990.44 : x
  2. Step 2: Convert to fraction form
    20,350.62/30,537.27 = 10,990.44/x
  3. Step 3: Cross multiply
    20,350.62x = 30,537.27 × 10,990.44
  4. Step 4: Simplify right side
    20,350.62x = 335,618,033.70
  5. Step 5: Solve for x
    x = 335,618,033.70/20,350.62
  6. Step 6: Final answer
    x = 16,491.78

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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.