Home / 21,511.10-29,664.66-13,954.66

Finding the Fourth Proportional to 21,511.10, 29,664.66 and 13,954.66

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Solution

The fourth proportional to 21,511.10, 29,664.66 and 13,954.66 is: 19,244.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,511.10 : 29,664.66 = 13,954.66 : x
  2. Step 2: Convert to fraction form
    21,511.10/29,664.66 = 13,954.66/x
  3. Step 3: Cross multiply
    21,511.10x = 29,664.66 × 13,954.66
  4. Step 4: Simplify right side
    21,511.10x = 413,960,244.32
  5. Step 5: Solve for x
    x = 413,960,244.32/21,511.10
  6. Step 6: Final answer
    x = 19,244.03

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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.