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Finding the Fourth Proportional to 28,364.88, 38,979.12 and 27,063.96

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Solution

The fourth proportional to 28,364.88, 38,979.12 and 27,063.96 is: 37,191.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,364.88 : 38,979.12 = 27,063.96 : x
  2. Step 2: Convert to fraction form
    28,364.88/38,979.12 = 27,063.96/x
  3. Step 3: Cross multiply
    28,364.88x = 38,979.12 × 27,063.96
  4. Step 4: Simplify right side
    28,364.88x = 1,054,929,344.52
  5. Step 5: Solve for x
    x = 1,054,929,344.52/28,364.88
  6. Step 6: Final answer
    x = 37,191.39

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.