Home / 21,383.62-29,508.46-11,692.89

Finding the Fourth Proportional to 21,383.62, 29,508.46 and 11,692.89

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Solution

The fourth proportional to 21,383.62, 29,508.46 and 11,692.89 is: 16,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383.62 : 29,508.46 = 11,692.89 : x
  2. Step 2: Convert to fraction form
    21,383.62/29,508.46 = 11,692.89/x
  3. Step 3: Cross multiply
    21,383.62x = 29,508.46 × 11,692.89
  4. Step 4: Simplify right side
    21,383.62x = 345,039,118.38
  5. Step 5: Solve for x
    x = 345,039,118.38/21,383.62
  6. Step 6: Final answer
    x = 16,135.68

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1.5x scale

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.