Home / 21,790.33-32,679.75-5,991.61

Finding the Fourth Proportional to 21,790.33, 32,679.75 and 5,991.61

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Solution

The fourth proportional to 21,790.33, 32,679.75 and 5,991.61 is: 8,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790.33 : 32,679.75 = 5,991.61 : x
  2. Step 2: Convert to fraction form
    21,790.33/32,679.75 = 5,991.61/x
  3. Step 3: Cross multiply
    21,790.33x = 32,679.75 × 5,991.61
  4. Step 4: Simplify right side
    21,790.33x = 195,804,316.90
  5. Step 5: Solve for x
    x = 195,804,316.90/21,790.33
  6. Step 6: Final answer
    x = 8,985.84

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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.