Home / 20,067.92-30,107.82-6,921.62

Finding the Fourth Proportional to 20,067.92, 30,107.82 and 6,921.62

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Solution

The fourth proportional to 20,067.92, 30,107.82 and 6,921.62 is: 10,384.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.92 : 30,107.82 = 6,921.62 : x
  2. Step 2: Convert to fraction form
    20,067.92/30,107.82 = 6,921.62/x
  3. Step 3: Cross multiply
    20,067.92x = 30,107.82 × 6,921.62
  4. Step 4: Simplify right side
    20,067.92x = 208,394,889.07
  5. Step 5: Solve for x
    x = 208,394,889.07/20,067.92
  6. Step 6: Final answer
    x = 10,384.48

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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.