Home / 17,128.57-25,674.43-11,203.22

Finding the Fourth Proportional to 17,128.57, 25,674.43 and 11,203.22

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Solution

The fourth proportional to 17,128.57, 25,674.43 and 11,203.22 is: 16,792.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,128.57 : 25,674.43 = 11,203.22 : x
  2. Step 2: Convert to fraction form
    17,128.57/25,674.43 = 11,203.22/x
  3. Step 3: Cross multiply
    17,128.57x = 25,674.43 × 11,203.22
  4. Step 4: Simplify right side
    17,128.57x = 287,636,287.66
  5. Step 5: Solve for x
    x = 287,636,287.66/17,128.57
  6. Step 6: Final answer
    x = 16,792.78

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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.