Home / 31,835.36-43,933.06-19,905.61

Finding the Fourth Proportional to 31,835.36, 43,933.06 and 19,905.61

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Solution

The fourth proportional to 31,835.36, 43,933.06 and 19,905.61 is: 27,469.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,835.36 : 43,933.06 = 19,905.61 : x
  2. Step 2: Convert to fraction form
    31,835.36/43,933.06 = 19,905.61/x
  3. Step 3: Cross multiply
    31,835.36x = 43,933.06 × 19,905.61
  4. Step 4: Simplify right side
    31,835.36x = 874,514,418.54
  5. Step 5: Solve for x
    x = 874,514,418.54/31,835.36
  6. Step 6: Final answer
    x = 27,469.91

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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.