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Finding the Fourth Proportional to 27,608.76, 38,098.90 and 15,671.88

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Solution

The fourth proportional to 27,608.76, 38,098.90 and 15,671.88 is: 21,626.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,608.76 : 38,098.90 = 15,671.88 : x
  2. Step 2: Convert to fraction form
    27,608.76/38,098.90 = 15,671.88/x
  3. Step 3: Cross multiply
    27,608.76x = 38,098.90 × 15,671.88
  4. Step 4: Simplify right side
    27,608.76x = 597,081,388.93
  5. Step 5: Solve for x
    x = 597,081,388.93/27,608.76
  6. Step 6: Final answer
    x = 21,626.52

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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.