Home / 21,687.66-32,531.45-6,105.28

Finding the Fourth Proportional to 21,687.66, 32,531.45 and 6,105.28

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Solution

The fourth proportional to 21,687.66, 32,531.45 and 6,105.28 is: 9,157.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,687.66 : 32,531.45 = 6,105.28 : x
  2. Step 2: Convert to fraction form
    21,687.66/32,531.45 = 6,105.28/x
  3. Step 3: Cross multiply
    21,687.66x = 32,531.45 × 6,105.28
  4. Step 4: Simplify right side
    21,687.66x = 198,613,611.06
  5. Step 5: Solve for x
    x = 198,613,611.06/21,687.66
  6. Step 6: Final answer
    x = 9,157.91

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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.