Home / 21,101.46-29,118.06-11,669.82

Finding the Fourth Proportional to 21,101.46, 29,118.06 and 11,669.82

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Solution

The fourth proportional to 21,101.46, 29,118.06 and 11,669.82 is: 16,103.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,101.46 : 29,118.06 = 11,669.82 : x
  2. Step 2: Convert to fraction form
    21,101.46/29,118.06 = 11,669.82/x
  3. Step 3: Cross multiply
    21,101.46x = 29,118.06 × 11,669.82
  4. Step 4: Simplify right side
    21,101.46x = 339,802,518.95
  5. Step 5: Solve for x
    x = 339,802,518.95/21,101.46
  6. Step 6: Final answer
    x = 16,103.27

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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.