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Finding the Fourth Proportional to 36,418.51, 50,249.97 and 21,308.30

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Solution

The fourth proportional to 36,418.51, 50,249.97 and 21,308.30 is: 29,401.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,418.51 : 50,249.97 = 21,308.30 : x
  2. Step 2: Convert to fraction form
    36,418.51/50,249.97 = 21,308.30/x
  3. Step 3: Cross multiply
    36,418.51x = 50,249.97 × 21,308.30
  4. Step 4: Simplify right side
    36,418.51x = 1,070,741,372.94
  5. Step 5: Solve for x
    x = 1,070,741,372.94/36,418.51
  6. Step 6: Final answer
    x = 29,401.02

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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.