Home / 39,396.50-54,371.73-21,935.58

Finding the Fourth Proportional to 39,396.50, 54,371.73 and 21,935.58

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Solution

The fourth proportional to 39,396.50, 54,371.73 and 21,935.58 is: 30,273.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,396.50 : 54,371.73 = 21,935.58 : x
  2. Step 2: Convert to fraction form
    39,396.50/54,371.73 = 21,935.58/x
  3. Step 3: Cross multiply
    39,396.50x = 54,371.73 × 21,935.58
  4. Step 4: Simplify right side
    39,396.50x = 1,192,675,323.48
  5. Step 5: Solve for x
    x = 1,192,675,323.48/39,396.50
  6. Step 6: Final answer
    x = 30,273.64

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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.