Home / 21,388.25-32,076.69-6,391.82

Finding the Fourth Proportional to 21,388.25, 32,076.69 and 6,391.82

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Solution

The fourth proportional to 21,388.25, 32,076.69 and 6,391.82 is: 9,586.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,388.25 : 32,076.69 = 6,391.82 : x
  2. Step 2: Convert to fraction form
    21,388.25/32,076.69 = 6,391.82/x
  3. Step 3: Cross multiply
    21,388.25x = 32,076.69 × 6,391.82
  4. Step 4: Simplify right side
    21,388.25x = 205,028,268.29
  5. Step 5: Solve for x
    x = 205,028,268.29/21,388.25
  6. Step 6: Final answer
    x = 9,586.03

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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.