Home / 30,578.50-42,198.41-17,840.44

Finding the Fourth Proportional to 30,578.50, 42,198.41 and 17,840.44

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Solution

The fourth proportional to 30,578.50, 42,198.41 and 17,840.44 is: 24,619.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,578.50 : 42,198.41 = 17,840.44 : x
  2. Step 2: Convert to fraction form
    30,578.50/42,198.41 = 17,840.44/x
  3. Step 3: Cross multiply
    30,578.50x = 42,198.41 × 17,840.44
  4. Step 4: Simplify right side
    30,578.50x = 752,838,201.70
  5. Step 5: Solve for x
    x = 752,838,201.70/30,578.50
  6. Step 6: Final answer
    x = 24,619.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.