Home / 13,838.71-20,758.14-3,450.46

Finding the Fourth Proportional to 13,838.71, 20,758.14 and 3,450.46

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Solution

The fourth proportional to 13,838.71, 20,758.14 and 3,450.46 is: 5,175.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.71 : 20,758.14 = 3,450.46 : x
  2. Step 2: Convert to fraction form
    13,838.71/20,758.14 = 3,450.46/x
  3. Step 3: Cross multiply
    13,838.71x = 20,758.14 × 3,450.46
  4. Step 4: Simplify right side
    13,838.71x = 71,625,114.49
  5. Step 5: Solve for x
    x = 71,625,114.49/13,838.71
  6. Step 6: Final answer
    x = 5,175.71

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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.