Home / 20,126.92-30,190.38-6,277

Finding the Fourth Proportional to 20,126.92, 30,190.38 and 6,277

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Solution

The fourth proportional to 20,126.92, 30,190.38 and 6,277 is: 9,415.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.92 : 30,190.38 = 6,277 : x
  2. Step 2: Convert to fraction form
    20,126.92/30,190.38 = 6,277/x
  3. Step 3: Cross multiply
    20,126.92x = 30,190.38 × 6,277
  4. Step 4: Simplify right side
    20,126.92x = 189,505,015.26
  5. Step 5: Solve for x
    x = 189,505,015.26/20,126.92
  6. Step 6: Final answer
    x = 9,415.50

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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.