Home / 31,609.17-43,629.33-19,665.36

Finding the Fourth Proportional to 31,609.17, 43,629.33 and 19,665.36

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Solution

The fourth proportional to 31,609.17, 43,629.33 and 19,665.36 is: 27,143.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,609.17 : 43,629.33 = 19,665.36 : x
  2. Step 2: Convert to fraction form
    31,609.17/43,629.33 = 19,665.36/x
  3. Step 3: Cross multiply
    31,609.17x = 43,629.33 × 19,665.36
  4. Step 4: Simplify right side
    31,609.17x = 857,986,481.01
  5. Step 5: Solve for x
    x = 857,986,481.01/31,609.17
  6. Step 6: Final answer
    x = 27,143.59

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1.5x scale

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.