Home / 21,282.20-31,942.97-10,759.62

Finding the Fourth Proportional to 21,282.20, 31,942.97 and 10,759.62

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Solution

The fourth proportional to 21,282.20, 31,942.97 and 10,759.62 is: 16,149.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.20 : 31,942.97 = 10,759.62 : x
  2. Step 2: Convert to fraction form
    21,282.20/31,942.97 = 10,759.62/x
  3. Step 3: Cross multiply
    21,282.20x = 31,942.97 × 10,759.62
  4. Step 4: Simplify right side
    21,282.20x = 343,694,218.87
  5. Step 5: Solve for x
    x = 343,694,218.87/21,282.20
  6. Step 6: Final answer
    x = 16,149.37

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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.