Home / 21,787.75-32,687.08-6,205.38

Finding the Fourth Proportional to 21,787.75, 32,687.08 and 6,205.38

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Solution

The fourth proportional to 21,787.75, 32,687.08 and 6,205.38 is: 9,309.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,787.75 : 32,687.08 = 6,205.38 : x
  2. Step 2: Convert to fraction form
    21,787.75/32,687.08 = 6,205.38/x
  3. Step 3: Cross multiply
    21,787.75x = 32,687.08 × 6,205.38
  4. Step 4: Simplify right side
    21,787.75x = 202,835,614.40
  5. Step 5: Solve for x
    x = 202,835,614.40/21,787.75
  6. Step 6: Final answer
    x = 9,309.62

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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.