Home / 21,817.12-32,725.44-7,966

Finding the Fourth Proportional to 21,817.12, 32,725.44 and 7,966

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Solution

The fourth proportional to 21,817.12, 32,725.44 and 7,966 is: 11,948.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,817.12 : 32,725.44 = 7,966 : x
  2. Step 2: Convert to fraction form
    21,817.12/32,725.44 = 7,966/x
  3. Step 3: Cross multiply
    21,817.12x = 32,725.44 × 7,966
  4. Step 4: Simplify right side
    21,817.12x = 260,690,855.04
  5. Step 5: Solve for x
    x = 260,690,855.04/21,817.12
  6. Step 6: Final answer
    x = 11,948.91

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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.