Home / 20,434.01-28,198.67-11,481.35

Finding the Fourth Proportional to 20,434.01, 28,198.67 and 11,481.35

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Solution

The fourth proportional to 20,434.01, 28,198.67 and 11,481.35 is: 15,844.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.01 : 28,198.67 = 11,481.35 : x
  2. Step 2: Convert to fraction form
    20,434.01/28,198.67 = 11,481.35/x
  3. Step 3: Cross multiply
    20,434.01x = 28,198.67 × 11,481.35
  4. Step 4: Simplify right side
    20,434.01x = 323,758,601.40
  5. Step 5: Solve for x
    x = 323,758,601.40/20,434.01
  6. Step 6: Final answer
    x = 15,844.11

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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.