Home / 20,584.92-30,876.66-8,731.08

Finding the Fourth Proportional to 20,584.92, 30,876.66 and 8,731.08

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Solution

The fourth proportional to 20,584.92, 30,876.66 and 8,731.08 is: 13,096.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.92 : 30,876.66 = 8,731.08 : x
  2. Step 2: Convert to fraction form
    20,584.92/30,876.66 = 8,731.08/x
  3. Step 3: Cross multiply
    20,584.92x = 30,876.66 × 8,731.08
  4. Step 4: Simplify right side
    20,584.92x = 269,586,588.59
  5. Step 5: Solve for x
    x = 269,586,588.59/20,584.92
  6. Step 6: Final answer
    x = 13,096.31

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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.