Home / 18,023.07-27,021.87-6,920.40

Finding the Fourth Proportional to 18,023.07, 27,021.87 and 6,920.40

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Solution

The fourth proportional to 18,023.07, 27,021.87 and 6,920.40 is: 10,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,023.07 : 27,021.87 = 6,920.40 : x
  2. Step 2: Convert to fraction form
    18,023.07/27,021.87 = 6,920.40/x
  3. Step 3: Cross multiply
    18,023.07x = 27,021.87 × 6,920.40
  4. Step 4: Simplify right side
    18,023.07x = 187,002,149.15
  5. Step 5: Solve for x
    x = 187,002,149.15/18,023.07
  6. Step 6: Final answer
    x = 10,375.71

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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.