Home / 28,112.97-38,796.37-16,780.26

Finding the Fourth Proportional to 28,112.97, 38,796.37 and 16,780.26

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Solution

The fourth proportional to 28,112.97, 38,796.37 and 16,780.26 is: 23,157.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,112.97 : 38,796.37 = 16,780.26 : x
  2. Step 2: Convert to fraction form
    28,112.97/38,796.37 = 16,780.26/x
  3. Step 3: Cross multiply
    28,112.97x = 38,796.37 × 16,780.26
  4. Step 4: Simplify right side
    28,112.97x = 651,013,091.75
  5. Step 5: Solve for x
    x = 651,013,091.75/28,112.97
  6. Step 6: Final answer
    x = 23,157.04

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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.