Home / 39,842.31-54,982.46-21,692.95

Finding the Fourth Proportional to 39,842.31, 54,982.46 and 21,692.95

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Solution

The fourth proportional to 39,842.31, 54,982.46 and 21,692.95 is: 29,936.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,842.31 : 54,982.46 = 21,692.95 : x
  2. Step 2: Convert to fraction form
    39,842.31/54,982.46 = 21,692.95/x
  3. Step 3: Cross multiply
    39,842.31x = 54,982.46 × 21,692.95
  4. Step 4: Simplify right side
    39,842.31x = 1,192,731,672.43
  5. Step 5: Solve for x
    x = 1,192,731,672.43/39,842.31
  6. Step 6: Final answer
    x = 29,936.31

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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.