Home / 21,717.08-32,586-12,236.96

Finding the Fourth Proportional to 21,717.08, 32,586 and 12,236.96

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Solution

The fourth proportional to 21,717.08, 32,586 and 12,236.96 is: 18,361.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,717.08 : 32,586 = 12,236.96 : x
  2. Step 2: Convert to fraction form
    21,717.08/32,586 = 12,236.96/x
  3. Step 3: Cross multiply
    21,717.08x = 32,586 × 12,236.96
  4. Step 4: Simplify right side
    21,717.08x = 398,753,415.63
  5. Step 5: Solve for x
    x = 398,753,415.63/21,717.08
  6. Step 6: Final answer
    x = 18,361.29

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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.