Home / 31,982.02-44,143.09-21,789.91

Finding the Fourth Proportional to 31,982.02, 44,143.09 and 21,789.91

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Solution

The fourth proportional to 31,982.02, 44,143.09 and 21,789.91 is: 30,075.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,982.02 : 44,143.09 = 21,789.91 : x
  2. Step 2: Convert to fraction form
    31,982.02/44,143.09 = 21,789.91/x
  3. Step 3: Cross multiply
    31,982.02x = 44,143.09 × 21,789.91
  4. Step 4: Simplify right side
    31,982.02x = 961,873,958.22
  5. Step 5: Solve for x
    x = 961,873,958.22/31,982.02
  6. Step 6: Final answer
    x = 30,075.46

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Double scale
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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.