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Finding the Fourth Proportional to 21,608.00, 32,389.80 and 8,277.87

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Solution

The fourth proportional to 21,608.00, 32,389.80 and 8,277.87 is: 12,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,608.00 : 32,389.80 = 8,277.87 : x
  2. Step 2: Convert to fraction form
    21,608.00/32,389.80 = 8,277.87/x
  3. Step 3: Cross multiply
    21,608.00x = 32,389.80 × 8,277.87
  4. Step 4: Simplify right side
    21,608.00x = 268,118,553.73
  5. Step 5: Solve for x
    x = 268,118,553.73/21,608.00
  6. Step 6: Final answer
    x = 12,408.30

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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.