Home / 38,758.11-58,138.56-10,680.36

Finding the Fourth Proportional to 38,758.11, 58,138.56 and 10,680.36

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Solution

The fourth proportional to 38,758.11, 58,138.56 and 10,680.36 is: 16,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,758.11 : 58,138.56 = 10,680.36 : x
  2. Step 2: Convert to fraction form
    38,758.11/58,138.56 = 10,680.36/x
  3. Step 3: Cross multiply
    38,758.11x = 58,138.56 × 10,680.36
  4. Step 4: Simplify right side
    38,758.11x = 620,940,750.68
  5. Step 5: Solve for x
    x = 620,940,750.68/38,758.11
  6. Step 6: Final answer
    x = 16,020.92

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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.