Home / 20,966.57-31,443.14-6,923.97

Finding the Fourth Proportional to 20,966.57, 31,443.14 and 6,923.97

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Solution

The fourth proportional to 20,966.57, 31,443.14 and 6,923.97 is: 10,383.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.57 : 31,443.14 = 6,923.97 : x
  2. Step 2: Convert to fraction form
    20,966.57/31,443.14 = 6,923.97/x
  3. Step 3: Cross multiply
    20,966.57x = 31,443.14 × 6,923.97
  4. Step 4: Simplify right side
    20,966.57x = 217,711,323.45
  5. Step 5: Solve for x
    x = 217,711,323.45/20,966.57
  6. Step 6: Final answer
    x = 10,383.74

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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.