Home / 22,227.28-30,672.52-12,289.36

Finding the Fourth Proportional to 22,227.28, 30,672.52 and 12,289.36

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Solution

The fourth proportional to 22,227.28, 30,672.52 and 12,289.36 is: 16,958.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,227.28 : 30,672.52 = 12,289.36 : x
  2. Step 2: Convert to fraction form
    22,227.28/30,672.52 = 12,289.36/x
  3. Step 3: Cross multiply
    22,227.28x = 30,672.52 × 12,289.36
  4. Step 4: Simplify right side
    22,227.28x = 376,945,640.39
  5. Step 5: Solve for x
    x = 376,945,640.39/22,227.28
  6. Step 6: Final answer
    x = 16,958.69

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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.