Home / 20,732.04-31,096.60-5,149.66

Finding the Fourth Proportional to 20,732.04, 31,096.60 and 5,149.66

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Solution

The fourth proportional to 20,732.04, 31,096.60 and 5,149.66 is: 7,724.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.04 : 31,096.60 = 5,149.66 : x
  2. Step 2: Convert to fraction form
    20,732.04/31,096.60 = 5,149.66/x
  3. Step 3: Cross multiply
    20,732.04x = 31,096.60 × 5,149.66
  4. Step 4: Simplify right side
    20,732.04x = 160,136,917.16
  5. Step 5: Solve for x
    x = 160,136,917.16/20,732.04
  6. Step 6: Final answer
    x = 7,724.13

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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.