Home / 21,480.31-32,233.22-11,619.37

Finding the Fourth Proportional to 21,480.31, 32,233.22 and 11,619.37

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Solution

The fourth proportional to 21,480.31, 32,233.22 and 11,619.37 is: 17,435.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,480.31 : 32,233.22 = 11,619.37 : x
  2. Step 2: Convert to fraction form
    21,480.31/32,233.22 = 11,619.37/x
  3. Step 3: Cross multiply
    21,480.31x = 32,233.22 × 11,619.37
  4. Step 4: Simplify right side
    21,480.31x = 374,529,490.21
  5. Step 5: Solve for x
    x = 374,529,490.21/21,480.31
  6. Step 6: Final answer
    x = 17,435.95

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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.