Home / 31,252.19-43,128-17,105.03

Finding the Fourth Proportional to 31,252.19, 43,128 and 17,105.03

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Solution

The fourth proportional to 31,252.19, 43,128 and 17,105.03 is: 23,604.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,252.19 : 43,128 = 17,105.03 : x
  2. Step 2: Convert to fraction form
    31,252.19/43,128 = 17,105.03/x
  3. Step 3: Cross multiply
    31,252.19x = 43,128 × 17,105.03
  4. Step 4: Simplify right side
    31,252.19x = 737,705,518.20
  5. Step 5: Solve for x
    x = 737,705,518.20/31,252.19
  6. Step 6: Final answer
    x = 23,604.93

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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.