Home / 43,439.72-65,171.10-15,741.80

Finding the Fourth Proportional to 43,439.72, 65,171.10 and 15,741.80

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Solution

The fourth proportional to 43,439.72, 65,171.10 and 15,741.80 is: 23,616.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,439.72 : 65,171.10 = 15,741.80 : x
  2. Step 2: Convert to fraction form
    43,439.72/65,171.10 = 15,741.80/x
  3. Step 3: Cross multiply
    43,439.72x = 65,171.10 × 15,741.80
  4. Step 4: Simplify right side
    43,439.72x = 1,025,910,421.98
  5. Step 5: Solve for x
    x = 1,025,910,421.98/43,439.72
  6. Step 6: Final answer
    x = 23,616.87

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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.