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Finding the Fourth Proportional to 37,288.89, 55,837.89 and 20,630.43

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Solution

The fourth proportional to 37,288.89, 55,837.89 and 20,630.43 is: 30,892.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,288.89 : 55,837.89 = 20,630.43 : x
  2. Step 2: Convert to fraction form
    37,288.89/55,837.89 = 20,630.43/x
  3. Step 3: Cross multiply
    37,288.89x = 55,837.89 × 20,630.43
  4. Step 4: Simplify right side
    37,288.89x = 1,151,959,680.99
  5. Step 5: Solve for x
    x = 1,151,959,680.99/37,288.89
  6. Step 6: Final answer
    x = 30,892.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.