Home / 39,792.99-54,912.62-21,886.84

Finding the Fourth Proportional to 39,792.99, 54,912.62 and 21,886.84

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Solution

The fourth proportional to 39,792.99, 54,912.62 and 21,886.84 is: 30,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,792.99 : 54,912.62 = 21,886.84 : x
  2. Step 2: Convert to fraction form
    39,792.99/54,912.62 = 21,886.84/x
  3. Step 3: Cross multiply
    39,792.99x = 54,912.62 × 21,886.84
  4. Step 4: Simplify right side
    39,792.99x = 1,201,863,727.92
  5. Step 5: Solve for x
    x = 1,201,863,727.92/39,792.99
  6. Step 6: Final answer
    x = 30,202.90

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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.