Home / 43,408.82-65,118-13,819.73

Finding the Fourth Proportional to 43,408.82, 65,118 and 13,819.73

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Solution

The fourth proportional to 43,408.82, 65,118 and 13,819.73 is: 20,731.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,408.82 : 65,118 = 13,819.73 : x
  2. Step 2: Convert to fraction form
    43,408.82/65,118 = 13,819.73/x
  3. Step 3: Cross multiply
    43,408.82x = 65,118 × 13,819.73
  4. Step 4: Simplify right side
    43,408.82x = 899,912,852.55
  5. Step 5: Solve for x
    x = 899,912,852.55/43,408.82
  6. Step 6: Final answer
    x = 20,731.11

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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.