Home / 21,174.45-29,233.41-13,227.44

Finding the Fourth Proportional to 21,174.45, 29,233.41 and 13,227.44

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Solution

The fourth proportional to 21,174.45, 29,233.41 and 13,227.44 is: 18,261.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174.45 : 29,233.41 = 13,227.44 : x
  2. Step 2: Convert to fraction form
    21,174.45/29,233.41 = 13,227.44/x
  3. Step 3: Cross multiply
    21,174.45x = 29,233.41 × 13,227.44
  4. Step 4: Simplify right side
    21,174.45x = 386,683,188.03
  5. Step 5: Solve for x
    x = 386,683,188.03/21,174.45
  6. Step 6: Final answer
    x = 18,261.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.