Home / 31,662.64-43,694.26-17,515.18

Finding the Fourth Proportional to 31,662.64, 43,694.26 and 17,515.18

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Solution

The fourth proportional to 31,662.64, 43,694.26 and 17,515.18 is: 24,170.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,662.64 : 43,694.26 = 17,515.18 : x
  2. Step 2: Convert to fraction form
    31,662.64/43,694.26 = 17,515.18/x
  3. Step 3: Cross multiply
    31,662.64x = 43,694.26 × 17,515.18
  4. Step 4: Simplify right side
    31,662.64x = 765,312,828.87
  5. Step 5: Solve for x
    x = 765,312,828.87/31,662.64
  6. Step 6: Final answer
    x = 24,170.85

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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.