Home / 20,996.66-31,495.46-7,841.86

Finding the Fourth Proportional to 20,996.66, 31,495.46 and 7,841.86

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Solution

The fourth proportional to 20,996.66, 31,495.46 and 7,841.86 is: 11,762.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996.66 : 31,495.46 = 7,841.86 : x
  2. Step 2: Convert to fraction form
    20,996.66/31,495.46 = 7,841.86/x
  3. Step 3: Cross multiply
    20,996.66x = 31,495.46 × 7,841.86
  4. Step 4: Simplify right side
    20,996.66x = 246,982,987.96
  5. Step 5: Solve for x
    x = 246,982,987.96/20,996.66
  6. Step 6: Final answer
    x = 11,762.97

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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.