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Finding the Fourth Proportional to 27,613.28, 38,106 and 15,676.96

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Solution

The fourth proportional to 27,613.28, 38,106 and 15,676.96 is: 21,634.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,613.28 : 38,106 = 15,676.96 : x
  2. Step 2: Convert to fraction form
    27,613.28/38,106 = 15,676.96/x
  3. Step 3: Cross multiply
    27,613.28x = 38,106 × 15,676.96
  4. Step 4: Simplify right side
    27,613.28x = 597,386,237.76
  5. Step 5: Solve for x
    x = 597,386,237.76/27,613.28
  6. Step 6: Final answer
    x = 21,634.02

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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.