Home / 36,912.43-55,355.01-13,213.56

Finding the Fourth Proportional to 36,912.43, 55,355.01 and 13,213.56

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Solution

The fourth proportional to 36,912.43, 55,355.01 and 13,213.56 is: 19,815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,912.43 : 55,355.01 = 13,213.56 : x
  2. Step 2: Convert to fraction form
    36,912.43/55,355.01 = 13,213.56/x
  3. Step 3: Cross multiply
    36,912.43x = 55,355.01 × 13,213.56
  4. Step 4: Simplify right side
    36,912.43x = 731,436,745.94
  5. Step 5: Solve for x
    x = 731,436,745.94/36,912.43
  6. Step 6: Final answer
    x = 19,815.46

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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.