Home / 40,136.88-55,345.08-27,391.44

Finding the Fourth Proportional to 40,136.88, 55,345.08 and 27,391.44

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Solution

The fourth proportional to 40,136.88, 55,345.08 and 27,391.44 is: 37,770.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,136.88 : 55,345.08 = 27,391.44 : x
  2. Step 2: Convert to fraction form
    40,136.88/55,345.08 = 27,391.44/x
  3. Step 3: Cross multiply
    40,136.88x = 55,345.08 × 27,391.44
  4. Step 4: Simplify right side
    40,136.88x = 1,515,981,438.12
  5. Step 5: Solve for x
    x = 1,515,981,438.12/40,136.88
  6. Step 6: Final answer
    x = 37,770.29

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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.