Home / 19,839.72-29,761.12-6,692.09

Finding the Fourth Proportional to 19,839.72, 29,761.12 and 6,692.09

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Solution

The fourth proportional to 19,839.72, 29,761.12 and 6,692.09 is: 10,038.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839.72 : 29,761.12 = 6,692.09 : x
  2. Step 2: Convert to fraction form
    19,839.72/29,761.12 = 6,692.09/x
  3. Step 3: Cross multiply
    19,839.72x = 29,761.12 × 6,692.09
  4. Step 4: Simplify right side
    19,839.72x = 199,164,093.54
  5. Step 5: Solve for x
    x = 199,164,093.54/19,839.72
  6. Step 6: Final answer
    x = 10,038.65

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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.