Home / 39,716.00-54,808.46-21,811.38

Finding the Fourth Proportional to 39,716.00, 54,808.46 and 21,811.38

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Solution

The fourth proportional to 39,716.00, 54,808.46 and 21,811.38 is: 30,099.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,716.00 : 54,808.46 = 21,811.38 : x
  2. Step 2: Convert to fraction form
    39,716.00/54,808.46 = 21,811.38/x
  3. Step 3: Cross multiply
    39,716.00x = 54,808.46 × 21,811.38
  4. Step 4: Simplify right side
    39,716.00x = 1,195,448,202.80
  5. Step 5: Solve for x
    x = 1,195,448,202.80/39,716.00
  6. Step 6: Final answer
    x = 30,099.92

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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.