Home / 20,512.85-30,761.37-8,025.68

Finding the Fourth Proportional to 20,512.85, 30,761.37 and 8,025.68

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Solution

The fourth proportional to 20,512.85, 30,761.37 and 8,025.68 is: 12,035.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.85 : 30,761.37 = 8,025.68 : x
  2. Step 2: Convert to fraction form
    20,512.85/30,761.37 = 8,025.68/x
  3. Step 3: Cross multiply
    20,512.85x = 30,761.37 × 8,025.68
  4. Step 4: Simplify right side
    20,512.85x = 246,880,988.89
  5. Step 5: Solve for x
    x = 246,880,988.89/20,512.85
  6. Step 6: Final answer
    x = 12,035.43

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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.