Home / 27,776.62-38,330.79-15,843.82

Finding the Fourth Proportional to 27,776.62, 38,330.79 and 15,843.82

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Solution

The fourth proportional to 27,776.62, 38,330.79 and 15,843.82 is: 21,863.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,776.62 : 38,330.79 = 15,843.82 : x
  2. Step 2: Convert to fraction form
    27,776.62/38,330.79 = 15,843.82/x
  3. Step 3: Cross multiply
    27,776.62x = 38,330.79 × 15,843.82
  4. Step 4: Simplify right side
    27,776.62x = 607,306,137.22
  5. Step 5: Solve for x
    x = 607,306,137.22/27,776.62
  6. Step 6: Final answer
    x = 21,863.93

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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.