Home / 20,744.33-31,105.55-9,043.88

Finding the Fourth Proportional to 20,744.33, 31,105.55 and 9,043.88

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Solution

The fourth proportional to 20,744.33, 31,105.55 and 9,043.88 is: 13,561.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.33 : 31,105.55 = 9,043.88 : x
  2. Step 2: Convert to fraction form
    20,744.33/31,105.55 = 9,043.88/x
  3. Step 3: Cross multiply
    20,744.33x = 31,105.55 × 9,043.88
  4. Step 4: Simplify right side
    20,744.33x = 281,314,728.62
  5. Step 5: Solve for x
    x = 281,314,728.62/20,744.33
  6. Step 6: Final answer
    x = 13,561.05

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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.