Home / 39,544.69-54,571.68-21,639.70

Finding the Fourth Proportional to 39,544.69, 54,571.68 and 21,639.70

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Solution

The fourth proportional to 39,544.69, 54,571.68 and 21,639.70 is: 29,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,544.69 : 54,571.68 = 21,639.70 : x
  2. Step 2: Convert to fraction form
    39,544.69/54,571.68 = 21,639.70/x
  3. Step 3: Cross multiply
    39,544.69x = 54,571.68 × 21,639.70
  4. Step 4: Simplify right side
    39,544.69x = 1,180,914,688.73
  5. Step 5: Solve for x
    x = 1,180,914,688.73/39,544.69
  6. Step 6: Final answer
    x = 29,862.79

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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.