Home / 39,775.27-54,890.07-21,871.43

Finding the Fourth Proportional to 39,775.27, 54,890.07 and 21,871.43

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Solution

The fourth proportional to 39,775.27, 54,890.07 and 21,871.43 is: 30,182.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,775.27 : 54,890.07 = 21,871.43 : x
  2. Step 2: Convert to fraction form
    39,775.27/54,890.07 = 21,871.43/x
  3. Step 3: Cross multiply
    39,775.27x = 54,890.07 × 21,871.43
  4. Step 4: Simplify right side
    39,775.27x = 1,200,524,323.70
  5. Step 5: Solve for x
    x = 1,200,524,323.70/39,775.27
  6. Step 6: Final answer
    x = 30,182.68

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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.