Home / 22,280.94-30,747.60-12,209.76

Finding the Fourth Proportional to 22,280.94, 30,747.60 and 12,209.76

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Solution

The fourth proportional to 22,280.94, 30,747.60 and 12,209.76 is: 16,849.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,280.94 : 30,747.60 = 12,209.76 : x
  2. Step 2: Convert to fraction form
    22,280.94/30,747.60 = 12,209.76/x
  3. Step 3: Cross multiply
    22,280.94x = 30,747.60 × 12,209.76
  4. Step 4: Simplify right side
    22,280.94x = 375,420,816.58
  5. Step 5: Solve for x
    x = 375,420,816.58/22,280.94
  6. Step 6: Final answer
    x = 16,849.42

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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.