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Finding the Fourth Proportional to 36,786.50, 50,767.04 and 21,679.80

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Solution

The fourth proportional to 36,786.50, 50,767.04 and 21,679.80 is: 29,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,786.50 : 50,767.04 = 21,679.80 : x
  2. Step 2: Convert to fraction form
    36,786.50/50,767.04 = 21,679.80/x
  3. Step 3: Cross multiply
    36,786.50x = 50,767.04 × 21,679.80
  4. Step 4: Simplify right side
    36,786.50x = 1,100,618,911.56
  5. Step 5: Solve for x
    x = 1,100,618,911.56/36,786.50
  6. Step 6: Final answer
    x = 29,919.10

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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.