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Finding the Fourth Proportional to 37,236, 51,385.76 and 20,469.12

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Solution

The fourth proportional to 37,236, 51,385.76 and 20,469.12 is: 28,247.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,236 : 51,385.76 = 20,469.12 : x
  2. Step 2: Convert to fraction form
    37,236/51,385.76 = 20,469.12/x
  3. Step 3: Cross multiply
    37,236x = 51,385.76 × 20,469.12
  4. Step 4: Simplify right side
    37,236x = 1,051,821,287.73
  5. Step 5: Solve for x
    x = 1,051,821,287.73/37,236
  6. Step 6: Final answer
    x = 28,247.43

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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.