Home / 31,765.26-43,835.41-19,662.55

Finding the Fourth Proportional to 31,765.26, 43,835.41 and 19,662.55

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Solution

The fourth proportional to 31,765.26, 43,835.41 and 19,662.55 is: 27,133.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,765.26 : 43,835.41 = 19,662.55 : x
  2. Step 2: Convert to fraction form
    31,765.26/43,835.41 = 19,662.55/x
  3. Step 3: Cross multiply
    31,765.26x = 43,835.41 × 19,662.55
  4. Step 4: Simplify right side
    31,765.26x = 861,915,855.89
  5. Step 5: Solve for x
    x = 861,915,855.89/31,765.26
  6. Step 6: Final answer
    x = 27,133.91

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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.