Home / 40,136.36-55,388.62-22,231.64

Finding the Fourth Proportional to 40,136.36, 55,388.62 and 22,231.64

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Solution

The fourth proportional to 40,136.36, 55,388.62 and 22,231.64 is: 30,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,136.36 : 55,388.62 = 22,231.64 : x
  2. Step 2: Convert to fraction form
    40,136.36/55,388.62 = 22,231.64/x
  3. Step 3: Cross multiply
    40,136.36x = 55,388.62 × 22,231.64
  4. Step 4: Simplify right side
    40,136.36x = 1,231,379,859.94
  5. Step 5: Solve for x
    x = 1,231,379,859.94/40,136.36
  6. Step 6: Final answer
    x = 30,679.91

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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.