Home / 21,195.04-31,766.64-7,327.84

Finding the Fourth Proportional to 21,195.04, 31,766.64 and 7,327.84

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Solution

The fourth proportional to 21,195.04, 31,766.64 and 7,327.84 is: 10,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.04 : 31,766.64 = 7,327.84 : x
  2. Step 2: Convert to fraction form
    21,195.04/31,766.64 = 7,327.84/x
  3. Step 3: Cross multiply
    21,195.04x = 31,766.64 × 7,327.84
  4. Step 4: Simplify right side
    21,195.04x = 232,780,855.26
  5. Step 5: Solve for x
    x = 232,780,855.26/21,195.04
  6. Step 6: Final answer
    x = 10,982.80

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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.