Home / 38,987.11-58,198.63-34,257.85

Finding the Fourth Proportional to 38,987.11, 58,198.63 and 34,257.85

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Solution

The fourth proportional to 38,987.11, 58,198.63 and 34,257.85 is: 51,138.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,987.11 : 58,198.63 = 34,257.85 : x
  2. Step 2: Convert to fraction form
    38,987.11/58,198.63 = 34,257.85/x
  3. Step 3: Cross multiply
    38,987.11x = 58,198.63 × 34,257.85
  4. Step 4: Simplify right side
    38,987.11x = 1,993,759,936.75
  5. Step 5: Solve for x
    x = 1,993,759,936.75/38,987.11
  6. Step 6: Final answer
    x = 51,138.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.