Home / 20,977.25-31,463.17-6,187.73

Finding the Fourth Proportional to 20,977.25, 31,463.17 and 6,187.73

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Solution

The fourth proportional to 20,977.25, 31,463.17 and 6,187.73 is: 9,280.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977.25 : 31,463.17 = 6,187.73 : x
  2. Step 2: Convert to fraction form
    20,977.25/31,463.17 = 6,187.73/x
  3. Step 3: Cross multiply
    20,977.25x = 31,463.17 × 6,187.73
  4. Step 4: Simplify right side
    20,977.25x = 194,685,428.12
  5. Step 5: Solve for x
    x = 194,685,428.12/20,977.25
  6. Step 6: Final answer
    x = 9,280.79

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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.