Home / 39,631.34-54,692.60-21,726.36

Finding the Fourth Proportional to 39,631.34, 54,692.60 and 21,726.36

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Solution

The fourth proportional to 39,631.34, 54,692.60 and 21,726.36 is: 29,983.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,631.34 : 54,692.60 = 21,726.36 : x
  2. Step 2: Convert to fraction form
    39,631.34/54,692.60 = 21,726.36/x
  3. Step 3: Cross multiply
    39,631.34x = 54,692.60 × 21,726.36
  4. Step 4: Simplify right side
    39,631.34x = 1,188,270,843.47
  5. Step 5: Solve for x
    x = 1,188,270,843.47/39,631.34
  6. Step 6: Final answer
    x = 29,983.11

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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.