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Finding the Fourth Proportional to 18,685.58, 27,994.18 and 14,691.58

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Solution

The fourth proportional to 18,685.58, 27,994.18 and 14,691.58 is: 22,010.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.58 : 27,994.18 = 14,691.58 : x
  2. Step 2: Convert to fraction form
    18,685.58/27,994.18 = 14,691.58/x
  3. Step 3: Cross multiply
    18,685.58x = 27,994.18 × 14,691.58
  4. Step 4: Simplify right side
    18,685.58x = 411,278,735.00
  5. Step 5: Solve for x
    x = 411,278,735.00/18,685.58
  6. Step 6: Final answer
    x = 22,010.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.