Home / 21,326.75-29,433.14-11,895.31

Finding the Fourth Proportional to 21,326.75, 29,433.14 and 11,895.31

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Solution

The fourth proportional to 21,326.75, 29,433.14 and 11,895.31 is: 16,416.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.75 : 29,433.14 = 11,895.31 : x
  2. Step 2: Convert to fraction form
    21,326.75/29,433.14 = 11,895.31/x
  3. Step 3: Cross multiply
    21,326.75x = 29,433.14 × 11,895.31
  4. Step 4: Simplify right side
    21,326.75x = 350,116,324.57
  5. Step 5: Solve for x
    x = 350,116,324.57/21,326.75
  6. Step 6: Final answer
    x = 16,416.77

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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.