Home / 20,727.66-31,097.55-6,687.39

Finding the Fourth Proportional to 20,727.66, 31,097.55 and 6,687.39

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Solution

The fourth proportional to 20,727.66, 31,097.55 and 6,687.39 is: 10,033.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.66 : 31,097.55 = 6,687.39 : x
  2. Step 2: Convert to fraction form
    20,727.66/31,097.55 = 6,687.39/x
  3. Step 3: Cross multiply
    20,727.66x = 31,097.55 × 6,687.39
  4. Step 4: Simplify right side
    20,727.66x = 207,961,444.89
  5. Step 5: Solve for x
    x = 207,961,444.89/20,727.66
  6. Step 6: Final answer
    x = 10,033.04

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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.