Home / 31,843.83-43,963.68-21,097.80

Finding the Fourth Proportional to 31,843.83, 43,963.68 and 21,097.80

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Solution

The fourth proportional to 31,843.83, 43,963.68 and 21,097.80 is: 29,127.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,843.83 : 43,963.68 = 21,097.80 : x
  2. Step 2: Convert to fraction form
    31,843.83/43,963.68 = 21,097.80/x
  3. Step 3: Cross multiply
    31,843.83x = 43,963.68 × 21,097.80
  4. Step 4: Simplify right side
    31,843.83x = 927,536,927.90
  5. Step 5: Solve for x
    x = 927,536,927.90/31,843.83
  6. Step 6: Final answer
    x = 29,127.68

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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.