Home / 41,390.16-57,115.08-28,842

Finding the Fourth Proportional to 41,390.16, 57,115.08 and 28,842

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Solution

The fourth proportional to 41,390.16, 57,115.08 and 28,842 is: 39,799.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,390.16 : 57,115.08 = 28,842 : x
  2. Step 2: Convert to fraction form
    41,390.16/57,115.08 = 28,842/x
  3. Step 3: Cross multiply
    41,390.16x = 57,115.08 × 28,842
  4. Step 4: Simplify right side
    41,390.16x = 1,647,313,137.36
  5. Step 5: Solve for x
    x = 1,647,313,137.36/41,390.16
  6. Step 6: Final answer
    x = 39,799.63

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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.