Home / 19,540.96-26,975.82-13,091.70

Finding the Fourth Proportional to 19,540.96, 26,975.82 and 13,091.70

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Solution

The fourth proportional to 19,540.96, 26,975.82 and 13,091.70 is: 18,072.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.96 : 26,975.82 = 13,091.70 : x
  2. Step 2: Convert to fraction form
    19,540.96/26,975.82 = 13,091.70/x
  3. Step 3: Cross multiply
    19,540.96x = 26,975.82 × 13,091.70
  4. Step 4: Simplify right side
    19,540.96x = 353,159,417.82
  5. Step 5: Solve for x
    x = 353,159,417.82/19,540.96
  6. Step 6: Final answer
    x = 18,072.78

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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.