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Finding the Fourth Proportional to 18,093.38, 27,181.65 and 12,841.43

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Solution

The fourth proportional to 18,093.38, 27,181.65 and 12,841.43 is: 19,291.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,093.38 : 27,181.65 = 12,841.43 : x
  2. Step 2: Convert to fraction form
    18,093.38/27,181.65 = 12,841.43/x
  3. Step 3: Cross multiply
    18,093.38x = 27,181.65 × 12,841.43
  4. Step 4: Simplify right side
    18,093.38x = 349,051,255.76
  5. Step 5: Solve for x
    x = 349,051,255.76/18,093.38
  6. Step 6: Final answer
    x = 19,291.66

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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.