Home / 43,399.76-65,105.82-13,416.57

Finding the Fourth Proportional to 43,399.76, 65,105.82 and 13,416.57

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Solution

The fourth proportional to 43,399.76, 65,105.82 and 13,416.57 is: 20,126.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,399.76 : 65,105.82 = 13,416.57 : x
  2. Step 2: Convert to fraction form
    43,399.76/65,105.82 = 13,416.57/x
  3. Step 3: Cross multiply
    43,399.76x = 65,105.82 × 13,416.57
  4. Step 4: Simplify right side
    43,399.76x = 873,496,791.44
  5. Step 5: Solve for x
    x = 873,496,791.44/43,399.76
  6. Step 6: Final answer
    x = 20,126.77

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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.