Home / 19,841.94-27,383.11-13,115.90

Finding the Fourth Proportional to 19,841.94, 27,383.11 and 13,115.90

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Solution

The fourth proportional to 19,841.94, 27,383.11 and 13,115.90 is: 18,100.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,841.94 : 27,383.11 = 13,115.90 : x
  2. Step 2: Convert to fraction form
    19,841.94/27,383.11 = 13,115.90/x
  3. Step 3: Cross multiply
    19,841.94x = 27,383.11 × 13,115.90
  4. Step 4: Simplify right side
    19,841.94x = 359,154,168.12
  5. Step 5: Solve for x
    x = 359,154,168.12/19,841.94
  6. Step 6: Final answer
    x = 18,100.76

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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.