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Finding the Fourth Proportional to 36,353.80, 50,165.22 and 20,440

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Solution

The fourth proportional to 36,353.80, 50,165.22 and 20,440 is: 28,205.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,353.80 : 50,165.22 = 20,440 : x
  2. Step 2: Convert to fraction form
    36,353.80/50,165.22 = 20,440/x
  3. Step 3: Cross multiply
    36,353.80x = 50,165.22 × 20,440
  4. Step 4: Simplify right side
    36,353.80x = 1,025,377,096.80
  5. Step 5: Solve for x
    x = 1,025,377,096.80/36,353.80
  6. Step 6: Final answer
    x = 28,205.50

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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.