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Finding the Fourth Proportional to 21,675.84, 32,517.84 and 6,885.84

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Solution

The fourth proportional to 21,675.84, 32,517.84 and 6,885.84 is: 10,330.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,675.84 : 32,517.84 = 6,885.84 : x
  2. Step 2: Convert to fraction form
    21,675.84/32,517.84 = 6,885.84/x
  3. Step 3: Cross multiply
    21,675.84x = 32,517.84 × 6,885.84
  4. Step 4: Simplify right side
    21,675.84x = 223,912,643.39
  5. Step 5: Solve for x
    x = 223,912,643.39/21,675.84
  6. Step 6: Final answer
    x = 10,330.06

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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.