Home / 21,173.97-29,221.25-11,742.33

Finding the Fourth Proportional to 21,173.97, 29,221.25 and 11,742.33

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Solution

The fourth proportional to 21,173.97, 29,221.25 and 11,742.33 is: 16,205.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173.97 : 29,221.25 = 11,742.33 : x
  2. Step 2: Convert to fraction form
    21,173.97/29,221.25 = 11,742.33/x
  3. Step 3: Cross multiply
    21,173.97x = 29,221.25 × 11,742.33
  4. Step 4: Simplify right side
    21,173.97x = 343,125,560.51
  5. Step 5: Solve for x
    x = 343,125,560.51/21,173.97
  6. Step 6: Final answer
    x = 16,205.07

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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.