Home / 20,136.30-27,791.72-11,637.25

Finding the Fourth Proportional to 20,136.30, 27,791.72 and 11,637.25

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Solution

The fourth proportional to 20,136.30, 27,791.72 and 11,637.25 is: 16,061.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.30 : 27,791.72 = 11,637.25 : x
  2. Step 2: Convert to fraction form
    20,136.30/27,791.72 = 11,637.25/x
  3. Step 3: Cross multiply
    20,136.30x = 27,791.72 × 11,637.25
  4. Step 4: Simplify right side
    20,136.30x = 323,419,193.57
  5. Step 5: Solve for x
    x = 323,419,193.57/20,136.30
  6. Step 6: Final answer
    x = 16,061.50

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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.