Home / 20,013.85-27,622.92-13,195.88

Finding the Fourth Proportional to 20,013.85, 27,622.92 and 13,195.88

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Solution

The fourth proportional to 20,013.85, 27,622.92 and 13,195.88 is: 18,212.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.85 : 27,622.92 = 13,195.88 : x
  2. Step 2: Convert to fraction form
    20,013.85/27,622.92 = 13,195.88/x
  3. Step 3: Cross multiply
    20,013.85x = 27,622.92 × 13,195.88
  4. Step 4: Simplify right side
    20,013.85x = 364,508,752.53
  5. Step 5: Solve for x
    x = 364,508,752.53/20,013.85
  6. Step 6: Final answer
    x = 18,212.82

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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.