Home / 20,269.45-27,974.33-11,769.72

Finding the Fourth Proportional to 20,269.45, 27,974.33 and 11,769.72

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Solution

The fourth proportional to 20,269.45, 27,974.33 and 11,769.72 is: 16,243.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.45 : 27,974.33 = 11,769.72 : x
  2. Step 2: Convert to fraction form
    20,269.45/27,974.33 = 11,769.72/x
  3. Step 3: Cross multiply
    20,269.45x = 27,974.33 × 11,769.72
  4. Step 4: Simplify right side
    20,269.45x = 329,250,031.29
  5. Step 5: Solve for x
    x = 329,250,031.29/20,269.45
  6. Step 6: Final answer
    x = 16,243.66

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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.