Home / 20,727.75-31,097.67-6,687.46

Finding the Fourth Proportional to 20,727.75, 31,097.67 and 6,687.46

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Solution

The fourth proportional to 20,727.75, 31,097.67 and 6,687.46 is: 10,033.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.75 : 31,097.67 = 6,687.46 : x
  2. Step 2: Convert to fraction form
    20,727.75/31,097.67 = 6,687.46/x
  3. Step 3: Cross multiply
    20,727.75x = 31,097.67 × 6,687.46
  4. Step 4: Simplify right side
    20,727.75x = 207,964,488.17
  5. Step 5: Solve for x
    x = 207,964,488.17/20,727.75
  6. Step 6: Final answer
    x = 10,033.15

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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.