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Finding the Fourth Proportional to 21,386.52, 32,084.64 and 8,063.64

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Solution

The fourth proportional to 21,386.52, 32,084.64 and 8,063.64 is: 12,097.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386.52 : 32,084.64 = 8,063.64 : x
  2. Step 2: Convert to fraction form
    21,386.52/32,084.64 = 8,063.64/x
  3. Step 3: Cross multiply
    21,386.52x = 32,084.64 × 8,063.64
  4. Step 4: Simplify right side
    21,386.52x = 258,718,986.49
  5. Step 5: Solve for x
    x = 258,718,986.49/21,386.52
  6. Step 6: Final answer
    x = 12,097.29

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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.