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Finding the Fourth Proportional to 36,828, 50,822.70 and 20,061

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Solution

The fourth proportional to 36,828, 50,822.70 and 20,061 is: 27,684.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,828 : 50,822.70 = 20,061 : x
  2. Step 2: Convert to fraction form
    36,828/50,822.70 = 20,061/x
  3. Step 3: Cross multiply
    36,828x = 50,822.70 × 20,061
  4. Step 4: Simplify right side
    36,828x = 1,019,554,184.70
  5. Step 5: Solve for x
    x = 1,019,554,184.70/36,828
  6. Step 6: Final answer
    x = 27,684.21

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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.