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Finding the Fourth Proportional to 36,772.80, 50,729.59 and 21,658.22

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Solution

The fourth proportional to 36,772.80, 50,729.59 and 21,658.22 is: 29,878.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,772.80 : 50,729.59 = 21,658.22 : x
  2. Step 2: Convert to fraction form
    36,772.80/50,729.59 = 21,658.22/x
  3. Step 3: Cross multiply
    36,772.80x = 50,729.59 × 21,658.22
  4. Step 4: Simplify right side
    36,772.80x = 1,098,712,620.73
  5. Step 5: Solve for x
    x = 1,098,712,620.73/36,772.80
  6. Step 6: Final answer
    x = 29,878.41

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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.