Home / 21,788.89-32,679.41-5,991.87

Finding the Fourth Proportional to 21,788.89, 32,679.41 and 5,991.87

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Solution

The fourth proportional to 21,788.89, 32,679.41 and 5,991.87 is: 8,986.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,788.89 : 32,679.41 = 5,991.87 : x
  2. Step 2: Convert to fraction form
    21,788.89/32,679.41 = 5,991.87/x
  3. Step 3: Cross multiply
    21,788.89x = 32,679.41 × 5,991.87
  4. Step 4: Simplify right side
    21,788.89x = 195,810,868.99
  5. Step 5: Solve for x
    x = 195,810,868.99/21,788.89
  6. Step 6: Final answer
    x = 8,986.73

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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.