Home / 20,700.33-31,046.14-6,661.61

Finding the Fourth Proportional to 20,700.33, 31,046.14 and 6,661.61

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Solution

The fourth proportional to 20,700.33, 31,046.14 and 6,661.61 is: 9,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,700.33 : 31,046.14 = 6,661.61 : x
  2. Step 2: Convert to fraction form
    20,700.33/31,046.14 = 6,661.61/x
  3. Step 3: Cross multiply
    20,700.33x = 31,046.14 × 6,661.61
  4. Step 4: Simplify right side
    20,700.33x = 206,817,208.73
  5. Step 5: Solve for x
    x = 206,817,208.73/20,700.33
  6. Step 6: Final answer
    x = 9,991.01

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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.