Home / 19,091.75-28,638.17-5,240.75

Finding the Fourth Proportional to 19,091.75, 28,638.17 and 5,240.75

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Solution

The fourth proportional to 19,091.75, 28,638.17 and 5,240.75 is: 7,861.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,091.75 : 28,638.17 = 5,240.75 : x
  2. Step 2: Convert to fraction form
    19,091.75/28,638.17 = 5,240.75/x
  3. Step 3: Cross multiply
    19,091.75x = 28,638.17 × 5,240.75
  4. Step 4: Simplify right side
    19,091.75x = 150,085,489.43
  5. Step 5: Solve for x
    x = 150,085,489.43/19,091.75
  6. Step 6: Final answer
    x = 7,861.27

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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.