Home / 20,744.48-31,116.68-5,162.11

Finding the Fourth Proportional to 20,744.48, 31,116.68 and 5,162.11

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Solution

The fourth proportional to 20,744.48, 31,116.68 and 5,162.11 is: 7,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.48 : 31,116.68 = 5,162.11 : x
  2. Step 2: Convert to fraction form
    20,744.48/31,116.68 = 5,162.11/x
  3. Step 3: Cross multiply
    20,744.48x = 31,116.68 × 5,162.11
  4. Step 4: Simplify right side
    20,744.48x = 160,627,543.60
  5. Step 5: Solve for x
    x = 160,627,543.60/20,744.48
  6. Step 6: Final answer
    x = 7,743.15

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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.