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Finding the Fourth Proportional to 36,638, 50,560.44 and 19,871.12

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Solution

The fourth proportional to 36,638, 50,560.44 and 19,871.12 is: 27,422.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,638 : 50,560.44 = 19,871.12 : x
  2. Step 2: Convert to fraction form
    36,638/50,560.44 = 19,871.12/x
  3. Step 3: Cross multiply
    36,638x = 50,560.44 × 19,871.12
  4. Step 4: Simplify right side
    36,638x = 1,004,692,570.49
  5. Step 5: Solve for x
    x = 1,004,692,570.49/36,638
  6. Step 6: Final answer
    x = 27,422.15

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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.