Home / 20,183.31-30,255.32-9,650.61

Finding the Fourth Proportional to 20,183.31, 30,255.32 and 9,650.61

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Solution

The fourth proportional to 20,183.31, 30,255.32 and 9,650.61 is: 14,466.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.31 : 30,255.32 = 9,650.61 : x
  2. Step 2: Convert to fraction form
    20,183.31/30,255.32 = 9,650.61/x
  3. Step 3: Cross multiply
    20,183.31x = 30,255.32 × 9,650.61
  4. Step 4: Simplify right side
    20,183.31x = 291,982,317.87
  5. Step 5: Solve for x
    x = 291,982,317.87/20,183.31
  6. Step 6: Final answer
    x = 14,466.52

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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.