Home / 23,789.78-35,687.09-8,205.38

Finding the Fourth Proportional to 23,789.78, 35,687.09 and 8,205.38

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Solution

The fourth proportional to 23,789.78, 35,687.09 and 8,205.38 is: 12,308.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,789.78 : 35,687.09 = 8,205.38 : x
  2. Step 2: Convert to fraction form
    23,789.78/35,687.09 = 8,205.38/x
  3. Step 3: Cross multiply
    23,789.78x = 35,687.09 × 8,205.38
  4. Step 4: Simplify right side
    23,789.78x = 292,825,976.62
  5. Step 5: Solve for x
    x = 292,825,976.62/23,789.78
  6. Step 6: Final answer
    x = 12,308.90

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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.