Home / 21,186.46-29,237.25-11,755.90

Finding the Fourth Proportional to 21,186.46, 29,237.25 and 11,755.90

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Solution

The fourth proportional to 21,186.46, 29,237.25 and 11,755.90 is: 16,223.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.46 : 29,237.25 = 11,755.90 : x
  2. Step 2: Convert to fraction form
    21,186.46/29,237.25 = 11,755.90/x
  3. Step 3: Cross multiply
    21,186.46x = 29,237.25 × 11,755.90
  4. Step 4: Simplify right side
    21,186.46x = 343,710,187.28
  5. Step 5: Solve for x
    x = 343,710,187.28/21,186.46
  6. Step 6: Final answer
    x = 16,223.11

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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.