Home / 21,680.82-32,525.76-12,325.14

Finding the Fourth Proportional to 21,680.82, 32,525.76 and 12,325.14

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Solution

The fourth proportional to 21,680.82, 32,525.76 and 12,325.14 is: 18,490.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,680.82 : 32,525.76 = 12,325.14 : x
  2. Step 2: Convert to fraction form
    21,680.82/32,525.76 = 12,325.14/x
  3. Step 3: Cross multiply
    21,680.82x = 32,525.76 × 12,325.14
  4. Step 4: Simplify right side
    21,680.82x = 400,884,545.61
  5. Step 5: Solve for x
    x = 400,884,545.61/21,680.82
  6. Step 6: Final answer
    x = 18,490.29

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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.