Home / 31,241.97-43,128.16-19,926.99

Finding the Fourth Proportional to 31,241.97, 43,128.16 and 19,926.99

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Solution

The fourth proportional to 31,241.97, 43,128.16 and 19,926.99 is: 27,508.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,241.97 : 43,128.16 = 19,926.99 : x
  2. Step 2: Convert to fraction form
    31,241.97/43,128.16 = 19,926.99/x
  3. Step 3: Cross multiply
    31,241.97x = 43,128.16 × 19,926.99
  4. Step 4: Simplify right side
    31,241.97x = 859,414,363.22
  5. Step 5: Solve for x
    x = 859,414,363.22/31,241.97
  6. Step 6: Final answer
    x = 27,508.33

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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.