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Finding the Fourth Proportional to 20,144.79, 30,217.19 and 6,293.79

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Solution

The fourth proportional to 20,144.79, 30,217.19 and 6,293.79 is: 9,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.79 : 30,217.19 = 6,293.79 : x
  2. Step 2: Convert to fraction form
    20,144.79/30,217.19 = 6,293.79/x
  3. Step 3: Cross multiply
    20,144.79x = 30,217.19 × 6,293.79
  4. Step 4: Simplify right side
    20,144.79x = 190,180,616.78
  5. Step 5: Solve for x
    x = 190,180,616.78/20,144.79
  6. Step 6: Final answer
    x = 9,440.69

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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.