Home / 18,067.90-27,101.70-4,920.25

Finding the Fourth Proportional to 18,067.90, 27,101.70 and 4,920.25

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Solution

The fourth proportional to 18,067.90, 27,101.70 and 4,920.25 is: 7,380.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,067.90 : 27,101.70 = 4,920.25 : x
  2. Step 2: Convert to fraction form
    18,067.90/27,101.70 = 4,920.25/x
  3. Step 3: Cross multiply
    18,067.90x = 27,101.70 × 4,920.25
  4. Step 4: Simplify right side
    18,067.90x = 133,347,139.43
  5. Step 5: Solve for x
    x = 133,347,139.43/18,067.90
  6. Step 6: Final answer
    x = 7,380.33

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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.