Home / 39,772.23-54,885.71-21,867.54

Finding the Fourth Proportional to 39,772.23, 54,885.71 and 21,867.54

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Solution

The fourth proportional to 39,772.23, 54,885.71 and 21,867.54 is: 30,177.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,772.23 : 54,885.71 = 21,867.54 : x
  2. Step 2: Convert to fraction form
    39,772.23/54,885.71 = 21,867.54/x
  3. Step 3: Cross multiply
    39,772.23x = 54,885.71 × 21,867.54
  4. Step 4: Simplify right side
    39,772.23x = 1,200,215,458.85
  5. Step 5: Solve for x
    x = 1,200,215,458.85/39,772.23
  6. Step 6: Final answer
    x = 30,177.22

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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.