Home / 43,408.44-65,120.76-19,717.65

Finding the Fourth Proportional to 43,408.44, 65,120.76 and 19,717.65

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Solution

The fourth proportional to 43,408.44, 65,120.76 and 19,717.65 is: 29,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,408.44 : 65,120.76 = 19,717.65 : x
  2. Step 2: Convert to fraction form
    43,408.44/65,120.76 = 19,717.65/x
  3. Step 3: Cross multiply
    43,408.44x = 65,120.76 × 19,717.65
  4. Step 4: Simplify right side
    43,408.44x = 1,284,028,353.41
  5. Step 5: Solve for x
    x = 1,284,028,353.41/43,408.44
  6. Step 6: Final answer
    x = 29,580.15

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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.