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Finding the Fourth Proportional to 37,997.92, 57,021.36 and 20,479.96

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Solution

The fourth proportional to 37,997.92, 57,021.36 and 20,479.96 is: 30,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,997.92 : 57,021.36 = 20,479.96 : x
  2. Step 2: Convert to fraction form
    37,997.92/57,021.36 = 20,479.96/x
  3. Step 3: Cross multiply
    37,997.92x = 57,021.36 × 20,479.96
  4. Step 4: Simplify right side
    37,997.92x = 1,167,795,171.95
  5. Step 5: Solve for x
    x = 1,167,795,171.95/37,997.92
  6. Step 6: Final answer
    x = 30,733.13

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1.5x scale

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.