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Finding the Fourth Proportional to 36,855.74, 50,860.87 and 21,748.43

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Solution

The fourth proportional to 36,855.74, 50,860.87 and 21,748.43 is: 30,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,855.74 : 50,860.87 = 21,748.43 : x
  2. Step 2: Convert to fraction form
    36,855.74/50,860.87 = 21,748.43/x
  3. Step 3: Cross multiply
    36,855.74x = 50,860.87 × 21,748.43
  4. Step 4: Simplify right side
    36,855.74x = 1,106,144,143.72
  5. Step 5: Solve for x
    x = 1,106,144,143.72/36,855.74
  6. Step 6: Final answer
    x = 30,012.80

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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.