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Finding the Fourth Proportional to 37,665.52, 51,978.01 and 20,669.91

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Solution

The fourth proportional to 37,665.52, 51,978.01 and 20,669.91 is: 28,524.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,665.52 : 51,978.01 = 20,669.91 : x
  2. Step 2: Convert to fraction form
    37,665.52/51,978.01 = 20,669.91/x
  3. Step 3: Cross multiply
    37,665.52x = 51,978.01 × 20,669.91
  4. Step 4: Simplify right side
    37,665.52x = 1,074,380,788.68
  5. Step 5: Solve for x
    x = 1,074,380,788.68/37,665.52
  6. Step 6: Final answer
    x = 28,524.25

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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.