Home / 39,212.78-58,786.09-17,009.42

Finding the Fourth Proportional to 39,212.78, 58,786.09 and 17,009.42

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Solution

The fourth proportional to 39,212.78, 58,786.09 and 17,009.42 is: 25,499.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,212.78 : 58,786.09 = 17,009.42 : x
  2. Step 2: Convert to fraction form
    39,212.78/58,786.09 = 17,009.42/x
  3. Step 3: Cross multiply
    39,212.78x = 58,786.09 × 17,009.42
  4. Step 4: Simplify right side
    39,212.78x = 999,917,294.97
  5. Step 5: Solve for x
    x = 999,917,294.97/39,212.78
  6. Step 6: Final answer
    x = 25,499.78

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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.