Home / 20,454.07-28,229.49-17,091.56

Finding the Fourth Proportional to 20,454.07, 28,229.49 and 17,091.56

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Solution

The fourth proportional to 20,454.07, 28,229.49 and 17,091.56 is: 23,588.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.07 : 28,229.49 = 17,091.56 : x
  2. Step 2: Convert to fraction form
    20,454.07/28,229.49 = 17,091.56/x
  3. Step 3: Cross multiply
    20,454.07x = 28,229.49 × 17,091.56
  4. Step 4: Simplify right side
    20,454.07x = 482,485,880.96
  5. Step 5: Solve for x
    x = 482,485,880.96/20,454.07
  6. Step 6: Final answer
    x = 23,588.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.