Home / 38,634.30-57,936.33-13,664.70

Finding the Fourth Proportional to 38,634.30, 57,936.33 and 13,664.70

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Solution

The fourth proportional to 38,634.30, 57,936.33 and 13,664.70 is: 20,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,634.30 : 57,936.33 = 13,664.70 : x
  2. Step 2: Convert to fraction form
    38,634.30/57,936.33 = 13,664.70/x
  3. Step 3: Cross multiply
    38,634.30x = 57,936.33 × 13,664.70
  4. Step 4: Simplify right side
    38,634.30x = 791,682,568.55
  5. Step 5: Solve for x
    x = 791,682,568.55/38,634.30
  6. Step 6: Final answer
    x = 20,491.70

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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.