Home / 21,600.09-29,797.92-12,642.04

Finding the Fourth Proportional to 21,600.09, 29,797.92 and 12,642.04

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Solution

The fourth proportional to 21,600.09, 29,797.92 and 12,642.04 is: 17,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,600.09 : 29,797.92 = 12,642.04 : x
  2. Step 2: Convert to fraction form
    21,600.09/29,797.92 = 12,642.04/x
  3. Step 3: Cross multiply
    21,600.09x = 29,797.92 × 12,642.04
  4. Step 4: Simplify right side
    21,600.09x = 376,706,496.56
  5. Step 5: Solve for x
    x = 376,706,496.56/21,600.09
  6. Step 6: Final answer
    x = 17,440.04

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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.