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Finding the Fourth Proportional to 41,335.68, 57,021.12 and 28,738.56

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Solution

The fourth proportional to 41,335.68, 57,021.12 and 28,738.56 is: 39,643.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,335.68 : 57,021.12 = 28,738.56 : x
  2. Step 2: Convert to fraction form
    41,335.68/57,021.12 = 28,738.56/x
  3. Step 3: Cross multiply
    41,335.68x = 57,021.12 × 28,738.56
  4. Step 4: Simplify right side
    41,335.68x = 1,638,704,878.39
  5. Step 5: Solve for x
    x = 1,638,704,878.39/41,335.68
  6. Step 6: Final answer
    x = 39,643.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.