Home / 21,371.88-32,065.11-11,512.16

Finding the Fourth Proportional to 21,371.88, 32,065.11 and 11,512.16

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Solution

The fourth proportional to 21,371.88, 32,065.11 and 11,512.16 is: 17,272.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,371.88 : 32,065.11 = 11,512.16 : x
  2. Step 2: Convert to fraction form
    21,371.88/32,065.11 = 11,512.16/x
  3. Step 3: Cross multiply
    21,371.88x = 32,065.11 × 11,512.16
  4. Step 4: Simplify right side
    21,371.88x = 369,138,516.41
  5. Step 5: Solve for x
    x = 369,138,516.41/21,371.88
  6. Step 6: Final answer
    x = 17,272.16

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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.