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Finding the Fourth Proportional to 21,462.62, 32,179.48 and 8,299.58

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Solution

The fourth proportional to 21,462.62, 32,179.48 and 8,299.58 is: 12,443.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,462.62 : 32,179.48 = 8,299.58 : x
  2. Step 2: Convert to fraction form
    21,462.62/32,179.48 = 8,299.58/x
  3. Step 3: Cross multiply
    21,462.62x = 32,179.48 × 8,299.58
  4. Step 4: Simplify right side
    21,462.62x = 267,075,986.97
  5. Step 5: Solve for x
    x = 267,075,986.97/21,462.62
  6. Step 6: Final answer
    x = 12,443.78

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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.