Home / 39,921.28-55,091.71-22,016.90

Finding the Fourth Proportional to 39,921.28, 55,091.71 and 22,016.90

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Solution

The fourth proportional to 39,921.28, 55,091.71 and 22,016.90 is: 30,383.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,921.28 : 55,091.71 = 22,016.90 : x
  2. Step 2: Convert to fraction form
    39,921.28/55,091.71 = 22,016.90/x
  3. Step 3: Cross multiply
    39,921.28x = 55,091.71 × 22,016.90
  4. Step 4: Simplify right side
    39,921.28x = 1,212,948,835.15
  5. Step 5: Solve for x
    x = 1,212,948,835.15/39,921.28
  6. Step 6: Final answer
    x = 30,383.52

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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.