Home / 20,439.55-30,662.97-5,648.14

Finding the Fourth Proportional to 20,439.55, 30,662.97 and 5,648.14

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Solution

The fourth proportional to 20,439.55, 30,662.97 and 5,648.14 is: 8,473.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439.55 : 30,662.97 = 5,648.14 : x
  2. Step 2: Convert to fraction form
    20,439.55/30,662.97 = 5,648.14/x
  3. Step 3: Cross multiply
    20,439.55x = 30,662.97 × 5,648.14
  4. Step 4: Simplify right side
    20,439.55x = 173,188,747.38
  5. Step 5: Solve for x
    x = 173,188,747.38/20,439.55
  6. Step 6: Final answer
    x = 8,473.22

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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.