Home / 28,189.97-38,887.42-17,431.41

Finding the Fourth Proportional to 28,189.97, 38,887.42 and 17,431.41

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Solution

The fourth proportional to 28,189.97, 38,887.42 and 17,431.41 is: 24,046.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189.97 : 38,887.42 = 17,431.41 : x
  2. Step 2: Convert to fraction form
    28,189.97/38,887.42 = 17,431.41/x
  3. Step 3: Cross multiply
    28,189.97x = 38,887.42 × 17,431.41
  4. Step 4: Simplify right side
    28,189.97x = 677,862,412.69
  5. Step 5: Solve for x
    x = 677,862,412.69/28,189.97
  6. Step 6: Final answer
    x = 24,046.22

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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.