Home / 22,180.72-30,616.52-12,755.56

Finding the Fourth Proportional to 22,180.72, 30,616.52 and 12,755.56

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Solution

The fourth proportional to 22,180.72, 30,616.52 and 12,755.56 is: 17,606.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,180.72 : 30,616.52 = 12,755.56 : x
  2. Step 2: Convert to fraction form
    22,180.72/30,616.52 = 12,755.56/x
  3. Step 3: Cross multiply
    22,180.72x = 30,616.52 × 12,755.56
  4. Step 4: Simplify right side
    22,180.72x = 390,530,857.85
  5. Step 5: Solve for x
    x = 390,530,857.85/22,180.72
  6. Step 6: Final answer
    x = 17,606.77

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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.