Home / 27,786.62-38,344.59-15,853.82

Finding the Fourth Proportional to 27,786.62, 38,344.59 and 15,853.82

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Solution

The fourth proportional to 27,786.62, 38,344.59 and 15,853.82 is: 21,877.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,786.62 : 38,344.59 = 15,853.82 : x
  2. Step 2: Convert to fraction form
    27,786.62/38,344.59 = 15,853.82/x
  3. Step 3: Cross multiply
    27,786.62x = 38,344.59 × 15,853.82
  4. Step 4: Simplify right side
    27,786.62x = 607,908,227.83
  5. Step 5: Solve for x
    x = 607,908,227.83/27,786.62
  6. Step 6: Final answer
    x = 21,877.73

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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.