Home / 20,508.12-30,749.85-8,025.82

Finding the Fourth Proportional to 20,508.12, 30,749.85 and 8,025.82

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Solution

The fourth proportional to 20,508.12, 30,749.85 and 8,025.82 is: 12,033.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.12 : 30,749.85 = 8,025.82 : x
  2. Step 2: Convert to fraction form
    20,508.12/30,749.85 = 8,025.82/x
  3. Step 3: Cross multiply
    20,508.12x = 30,749.85 × 8,025.82
  4. Step 4: Simplify right side
    20,508.12x = 246,792,684.25
  5. Step 5: Solve for x
    x = 246,792,684.25/20,508.12
  6. Step 6: Final answer
    x = 12,033.90

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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.