Home / 21,642.33-32,468.29-6,651.54

Finding the Fourth Proportional to 21,642.33, 32,468.29 and 6,651.54

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Solution

The fourth proportional to 21,642.33, 32,468.29 and 6,651.54 is: 9,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,642.33 : 32,468.29 = 6,651.54 : x
  2. Step 2: Convert to fraction form
    21,642.33/32,468.29 = 6,651.54/x
  3. Step 3: Cross multiply
    21,642.33x = 32,468.29 × 6,651.54
  4. Step 4: Simplify right side
    21,642.33x = 215,964,113.04
  5. Step 5: Solve for x
    x = 215,964,113.04/21,642.33
  6. Step 6: Final answer
    x = 9,978.78

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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.