Home / 20,540.10-30,814.78-6,500.96

Finding the Fourth Proportional to 20,540.10, 30,814.78 and 6,500.96

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Solution

The fourth proportional to 20,540.10, 30,814.78 and 6,500.96 is: 9,752.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,540.10 : 30,814.78 = 6,500.96 : x
  2. Step 2: Convert to fraction form
    20,540.10/30,814.78 = 6,500.96/x
  3. Step 3: Cross multiply
    20,540.10x = 30,814.78 × 6,500.96
  4. Step 4: Simplify right side
    20,540.10x = 200,325,712.97
  5. Step 5: Solve for x
    x = 200,325,712.97/20,540.10
  6. Step 6: Final answer
    x = 9,752.91

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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.