Home / 39,836.80-54,975.68-21,932.16

Finding the Fourth Proportional to 39,836.80, 54,975.68 and 21,932.16

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Solution

The fourth proportional to 39,836.80, 54,975.68 and 21,932.16 is: 30,266.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,836.80 : 54,975.68 = 21,932.16 : x
  2. Step 2: Convert to fraction form
    39,836.80/54,975.68 = 21,932.16/x
  3. Step 3: Cross multiply
    39,836.80x = 54,975.68 × 21,932.16
  4. Step 4: Simplify right side
    39,836.80x = 1,205,735,409.87
  5. Step 5: Solve for x
    x = 1,205,735,409.87/39,836.80
  6. Step 6: Final answer
    x = 30,266.87

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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.