Home / 20,144.70-30,217.68-5,355.18

Finding the Fourth Proportional to 20,144.70, 30,217.68 and 5,355.18

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Solution

The fourth proportional to 20,144.70, 30,217.68 and 5,355.18 is: 8,032.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.70 : 30,217.68 = 5,355.18 : x
  2. Step 2: Convert to fraction form
    20,144.70/30,217.68 = 5,355.18/x
  3. Step 3: Cross multiply
    20,144.70x = 30,217.68 × 5,355.18
  4. Step 4: Simplify right side
    20,144.70x = 161,821,115.58
  5. Step 5: Solve for x
    x = 161,821,115.58/20,144.70
  6. Step 6: Final answer
    x = 8,032.94

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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.