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Finding the Fourth Proportional to 27,891, 38,494.44 and 15,954.84

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Solution

The fourth proportional to 27,891, 38,494.44 and 15,954.84 is: 22,020.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,891 : 38,494.44 = 15,954.84 : x
  2. Step 2: Convert to fraction form
    27,891/38,494.44 = 15,954.84/x
  3. Step 3: Cross multiply
    27,891x = 38,494.44 × 15,954.84
  4. Step 4: Simplify right side
    27,891x = 614,172,631.09
  5. Step 5: Solve for x
    x = 614,172,631.09/27,891
  6. Step 6: Final answer
    x = 22,020.46

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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.