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Finding the Fourth Proportional to 30,486.78, 45,608.06 and 26,370.97

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Solution

The fourth proportional to 30,486.78, 45,608.06 and 26,370.97 is: 39,450.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,486.78 : 45,608.06 = 26,370.97 : x
  2. Step 2: Convert to fraction form
    30,486.78/45,608.06 = 26,370.97/x
  3. Step 3: Cross multiply
    30,486.78x = 45,608.06 × 26,370.97
  4. Step 4: Simplify right side
    30,486.78x = 1,202,728,733.93
  5. Step 5: Solve for x
    x = 1,202,728,733.93/30,486.78
  6. Step 6: Final answer
    x = 39,450.83

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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.