Home / 43,578.76-65,374.62-20,207.56

Finding the Fourth Proportional to 43,578.76, 65,374.62 and 20,207.56

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Solution

The fourth proportional to 43,578.76, 65,374.62 and 20,207.56 is: 30,314.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,578.76 : 65,374.62 = 20,207.56 : x
  2. Step 2: Convert to fraction form
    43,578.76/65,374.62 = 20,207.56/x
  3. Step 3: Cross multiply
    43,578.76x = 65,374.62 × 20,207.56
  4. Step 4: Simplify right side
    43,578.76x = 1,321,061,556.13
  5. Step 5: Solve for x
    x = 1,321,061,556.13/43,578.76
  6. Step 6: Final answer
    x = 30,314.34

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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.