Home / 20,022.78-30,036.21-6,873.44

Finding the Fourth Proportional to 20,022.78, 30,036.21 and 6,873.44

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Solution

The fourth proportional to 20,022.78, 30,036.21 and 6,873.44 is: 10,310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.78 : 30,036.21 = 6,873.44 : x
  2. Step 2: Convert to fraction form
    20,022.78/30,036.21 = 6,873.44/x
  3. Step 3: Cross multiply
    20,022.78x = 30,036.21 × 6,873.44
  4. Step 4: Simplify right side
    20,022.78x = 206,451,937.08
  5. Step 5: Solve for x
    x = 206,451,937.08/20,022.78
  6. Step 6: Final answer
    x = 10,310.85

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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.