Home / 28,021.14-38,671.49-16,086.78

Finding the Fourth Proportional to 28,021.14, 38,671.49 and 16,086.78

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Solution

The fourth proportional to 28,021.14, 38,671.49 and 16,086.78 is: 22,201.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.14 : 38,671.49 = 16,086.78 : x
  2. Step 2: Convert to fraction form
    28,021.14/38,671.49 = 16,086.78/x
  3. Step 3: Cross multiply
    28,021.14x = 38,671.49 × 16,086.78
  4. Step 4: Simplify right side
    28,021.14x = 622,099,671.47
  5. Step 5: Solve for x
    x = 622,099,671.47/28,021.14
  6. Step 6: Final answer
    x = 22,201.08

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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.