Home / 21,747.26-29,982.66-15,692.42

Finding the Fourth Proportional to 21,747.26, 29,982.66 and 15,692.42

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Solution

The fourth proportional to 21,747.26, 29,982.66 and 15,692.42 is: 21,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,747.26 : 29,982.66 = 15,692.42 : x
  2. Step 2: Convert to fraction form
    21,747.26/29,982.66 = 15,692.42/x
  3. Step 3: Cross multiply
    21,747.26x = 29,982.66 × 15,692.42
  4. Step 4: Simplify right side
    21,747.26x = 470,500,493.44
  5. Step 5: Solve for x
    x = 470,500,493.44/21,747.26
  6. Step 6: Final answer
    x = 21,634.93

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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.