Home / 20,727.05-31,095.01-6,687.88

Finding the Fourth Proportional to 20,727.05, 31,095.01 and 6,687.88

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Solution

The fourth proportional to 20,727.05, 31,095.01 and 6,687.88 is: 10,033.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.05 : 31,095.01 = 6,687.88 : x
  2. Step 2: Convert to fraction form
    20,727.05/31,095.01 = 6,687.88/x
  3. Step 3: Cross multiply
    20,727.05x = 31,095.01 × 6,687.88
  4. Step 4: Simplify right side
    20,727.05x = 207,959,540.00
  5. Step 5: Solve for x
    x = 207,959,540.00/20,727.05
  6. Step 6: Final answer
    x = 10,033.25

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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.