Home / 43,418.61-65,132.64-13,829.54

Finding the Fourth Proportional to 43,418.61, 65,132.64 and 13,829.54

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Solution

The fourth proportional to 43,418.61, 65,132.64 and 13,829.54 is: 20,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,418.61 : 65,132.64 = 13,829.54 : x
  2. Step 2: Convert to fraction form
    43,418.61/65,132.64 = 13,829.54/x
  3. Step 3: Cross multiply
    43,418.61x = 65,132.64 × 13,829.54
  4. Step 4: Simplify right side
    43,418.61x = 900,754,450.19
  5. Step 5: Solve for x
    x = 900,754,450.19/43,418.61
  6. Step 6: Final answer
    x = 20,745.81

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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.