Home / 21,185.88-29,236.48-11,625.82

Finding the Fourth Proportional to 21,185.88, 29,236.48 and 11,625.82

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Solution

The fourth proportional to 21,185.88, 29,236.48 and 11,625.82 is: 16,043.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185.88 : 29,236.48 = 11,625.82 : x
  2. Step 2: Convert to fraction form
    21,185.88/29,236.48 = 11,625.82/x
  3. Step 3: Cross multiply
    21,185.88x = 29,236.48 × 11,625.82
  4. Step 4: Simplify right side
    21,185.88x = 339,898,053.91
  5. Step 5: Solve for x
    x = 339,898,053.91/21,185.88
  6. Step 6: Final answer
    x = 16,043.61

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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.