Home / 13,293.27-19,939.98-3,431.87

Finding the Fourth Proportional to 13,293.27, 19,939.98 and 3,431.87

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Solution

The fourth proportional to 13,293.27, 19,939.98 and 3,431.87 is: 5,147.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.27 : 19,939.98 = 3,431.87 : x
  2. Step 2: Convert to fraction form
    13,293.27/19,939.98 = 3,431.87/x
  3. Step 3: Cross multiply
    13,293.27x = 19,939.98 × 3,431.87
  4. Step 4: Simplify right side
    13,293.27x = 68,431,402.00
  5. Step 5: Solve for x
    x = 68,431,402.00/13,293.27
  6. Step 6: Final answer
    x = 5,147.83

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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.