Home / 31,844.83-43,965.06-21,098.80

Finding the Fourth Proportional to 31,844.83, 43,965.06 and 21,098.80

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Solution

The fourth proportional to 31,844.83, 43,965.06 and 21,098.80 is: 29,129.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,844.83 : 43,965.06 = 21,098.80 : x
  2. Step 2: Convert to fraction form
    31,844.83/43,965.06 = 21,098.80/x
  3. Step 3: Cross multiply
    31,844.83x = 43,965.06 × 21,098.80
  4. Step 4: Simplify right side
    31,844.83x = 927,610,007.93
  5. Step 5: Solve for x
    x = 927,610,007.93/31,844.83
  6. Step 6: Final answer
    x = 29,129.06

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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.