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Finding the Fourth Proportional to 27,662.92, 38,173.68 and 15,087.67

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Solution

The fourth proportional to 27,662.92, 38,173.68 and 15,087.67 is: 20,820.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,662.92 : 38,173.68 = 15,087.67 : x
  2. Step 2: Convert to fraction form
    27,662.92/38,173.68 = 15,087.67/x
  3. Step 3: Cross multiply
    27,662.92x = 38,173.68 × 15,087.67
  4. Step 4: Simplify right side
    27,662.92x = 575,951,886.53
  5. Step 5: Solve for x
    x = 575,951,886.53/27,662.92
  6. Step 6: Final answer
    x = 20,820.36

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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.