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Finding the Fourth Proportional to 36,338, 50,149.32 and 21,436.88

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Solution

The fourth proportional to 36,338, 50,149.32 and 21,436.88 is: 29,584.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,338 : 50,149.32 = 21,436.88 : x
  2. Step 2: Convert to fraction form
    36,338/50,149.32 = 21,436.88/x
  3. Step 3: Cross multiply
    36,338x = 50,149.32 × 21,436.88
  4. Step 4: Simplify right side
    36,338x = 1,075,044,954.92
  5. Step 5: Solve for x
    x = 1,075,044,954.92/36,338
  6. Step 6: Final answer
    x = 29,584.59

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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.