Home / 21,190.62-29,376.99-20,067.18

Finding the Fourth Proportional to 21,190.62, 29,376.99 and 20,067.18

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Solution

The fourth proportional to 21,190.62, 29,376.99 and 20,067.18 is: 27,819.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,190.62 : 29,376.99 = 20,067.18 : x
  2. Step 2: Convert to fraction form
    21,190.62/29,376.99 = 20,067.18/x
  3. Step 3: Cross multiply
    21,190.62x = 29,376.99 × 20,067.18
  4. Step 4: Simplify right side
    21,190.62x = 589,513,346.19
  5. Step 5: Solve for x
    x = 589,513,346.19/21,190.62
  6. Step 6: Final answer
    x = 27,819.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.