Home / 20,472.38-28,252.08-11,519.44

Finding the Fourth Proportional to 20,472.38, 28,252.08 and 11,519.44

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Solution

The fourth proportional to 20,472.38, 28,252.08 and 11,519.44 is: 15,896.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,472.38 : 28,252.08 = 11,519.44 : x
  2. Step 2: Convert to fraction form
    20,472.38/28,252.08 = 11,519.44/x
  3. Step 3: Cross multiply
    20,472.38x = 28,252.08 × 11,519.44
  4. Step 4: Simplify right side
    20,472.38x = 325,448,140.44
  5. Step 5: Solve for x
    x = 325,448,140.44/20,472.38
  6. Step 6: Final answer
    x = 15,896.94

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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.