Home / 20,351.48-30,517.46-8,658.36

Finding the Fourth Proportional to 20,351.48, 30,517.46 and 8,658.36

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Solution

The fourth proportional to 20,351.48, 30,517.46 and 8,658.36 is: 12,983.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,351.48 : 30,517.46 = 8,658.36 : x
  2. Step 2: Convert to fraction form
    20,351.48/30,517.46 = 8,658.36/x
  3. Step 3: Cross multiply
    20,351.48x = 30,517.46 × 8,658.36
  4. Step 4: Simplify right side
    20,351.48x = 264,231,154.97
  5. Step 5: Solve for x
    x = 264,231,154.97/20,351.48
  6. Step 6: Final answer
    x = 12,983.39

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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.