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Finding the Fourth Proportional to 21,884, 32,827.60 and 8,034.40

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Solution

The fourth proportional to 21,884, 32,827.60 and 8,034.40 is: 12,052.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,884 : 32,827.60 = 8,034.40 : x
  2. Step 2: Convert to fraction form
    21,884/32,827.60 = 8,034.40/x
  3. Step 3: Cross multiply
    21,884x = 32,827.60 × 8,034.40
  4. Step 4: Simplify right side
    21,884x = 263,750,069.44
  5. Step 5: Solve for x
    x = 263,750,069.44/21,884
  6. Step 6: Final answer
    x = 12,052.19

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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.