Home / 43,170.24-64,760-13,588.96

Finding the Fourth Proportional to 43,170.24, 64,760 and 13,588.96

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Solution

The fourth proportional to 43,170.24, 64,760 and 13,588.96 is: 20,384.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,170.24 : 64,760 = 13,588.96 : x
  2. Step 2: Convert to fraction form
    43,170.24/64,760 = 13,588.96/x
  3. Step 3: Cross multiply
    43,170.24x = 64,760 × 13,588.96
  4. Step 4: Simplify right side
    43,170.24x = 880,021,049.60
  5. Step 5: Solve for x
    x = 880,021,049.60/43,170.24
  6. Step 6: Final answer
    x = 20,384.90

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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.