Home / 28,114.97-42,179.84-10,105.02

Finding the Fourth Proportional to 28,114.97, 42,179.84 and 10,105.02

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Solution

The fourth proportional to 28,114.97, 42,179.84 and 10,105.02 is: 15,160.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.97 : 42,179.84 = 10,105.02 : x
  2. Step 2: Convert to fraction form
    28,114.97/42,179.84 = 10,105.02/x
  3. Step 3: Cross multiply
    28,114.97x = 42,179.84 × 10,105.02
  4. Step 4: Simplify right side
    28,114.97x = 426,228,076.27
  5. Step 5: Solve for x
    x = 426,228,076.27/28,114.97
  6. Step 6: Final answer
    x = 15,160.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.