Home / 21,452.58-32,187.78-11,580.30

Finding the Fourth Proportional to 21,452.58, 32,187.78 and 11,580.30

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Solution

The fourth proportional to 21,452.58, 32,187.78 and 11,580.30 is: 17,375.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,452.58 : 32,187.78 = 11,580.30 : x
  2. Step 2: Convert to fraction form
    21,452.58/32,187.78 = 11,580.30/x
  3. Step 3: Cross multiply
    21,452.58x = 32,187.78 × 11,580.30
  4. Step 4: Simplify right side
    21,452.58x = 372,744,148.73
  5. Step 5: Solve for x
    x = 372,744,148.73/21,452.58
  6. Step 6: Final answer
    x = 17,375.26

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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.