Home / 21,684.82-32,531.76-12,329.14

Finding the Fourth Proportional to 21,684.82, 32,531.76 and 12,329.14

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Solution

The fourth proportional to 21,684.82, 32,531.76 and 12,329.14 is: 18,496.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,684.82 : 32,531.76 = 12,329.14 : x
  2. Step 2: Convert to fraction form
    21,684.82/32,531.76 = 12,329.14/x
  3. Step 3: Cross multiply
    21,684.82x = 32,531.76 × 12,329.14
  4. Step 4: Simplify right side
    21,684.82x = 401,088,623.49
  5. Step 5: Solve for x
    x = 401,088,623.49/21,684.82
  6. Step 6: Final answer
    x = 18,496.29

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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.