Home / 13,838.93-20,755.62-3,975.90

Finding the Fourth Proportional to 13,838.93, 20,755.62 and 3,975.90

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Solution

The fourth proportional to 13,838.93, 20,755.62 and 3,975.90 is: 5,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.93 : 20,755.62 = 3,975.90 : x
  2. Step 2: Convert to fraction form
    13,838.93/20,755.62 = 3,975.90/x
  3. Step 3: Cross multiply
    13,838.93x = 20,755.62 × 3,975.90
  4. Step 4: Simplify right side
    13,838.93x = 82,522,269.56
  5. Step 5: Solve for x
    x = 82,522,269.56/13,838.93
  6. Step 6: Final answer
    x = 5,963.05

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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.