Home / 21,327.26-29,431.62-11,895.82

Finding the Fourth Proportional to 21,327.26, 29,431.62 and 11,895.82

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Solution

The fourth proportional to 21,327.26, 29,431.62 and 11,895.82 is: 16,416.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.26 : 29,431.62 = 11,895.82 : x
  2. Step 2: Convert to fraction form
    21,327.26/29,431.62 = 11,895.82/x
  3. Step 3: Cross multiply
    21,327.26x = 29,431.62 × 11,895.82
  4. Step 4: Simplify right side
    21,327.26x = 350,113,253.83
  5. Step 5: Solve for x
    x = 350,113,253.83/21,327.26
  6. Step 6: Final answer
    x = 16,416.23

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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.