Home / 20,759.10-31,138.46-5,967.96

Finding the Fourth Proportional to 20,759.10, 31,138.46 and 5,967.96

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Solution

The fourth proportional to 20,759.10, 31,138.46 and 5,967.96 is: 8,951.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.10 : 31,138.46 = 5,967.96 : x
  2. Step 2: Convert to fraction form
    20,759.10/31,138.46 = 5,967.96/x
  3. Step 3: Cross multiply
    20,759.10x = 31,138.46 × 5,967.96
  4. Step 4: Simplify right side
    20,759.10x = 185,833,083.74
  5. Step 5: Solve for x
    x = 185,833,083.74/20,759.10
  6. Step 6: Final answer
    x = 8,951.89

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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.