Home / 21,224.07-29,286.09-11,792.66

Finding the Fourth Proportional to 21,224.07, 29,286.09 and 11,792.66

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Solution

The fourth proportional to 21,224.07, 29,286.09 and 11,792.66 is: 16,272.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.07 : 29,286.09 = 11,792.66 : x
  2. Step 2: Convert to fraction form
    21,224.07/29,286.09 = 11,792.66/x
  3. Step 3: Cross multiply
    21,224.07x = 29,286.09 × 11,792.66
  4. Step 4: Simplify right side
    21,224.07x = 345,360,755.67
  5. Step 5: Solve for x
    x = 345,360,755.67/21,224.07
  6. Step 6: Final answer
    x = 16,272.13

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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.