Home / 20,072.08-27,703.92-11,693.44

Finding the Fourth Proportional to 20,072.08, 27,703.92 and 11,693.44

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Solution

The fourth proportional to 20,072.08, 27,703.92 and 11,693.44 is: 16,139.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.08 : 27,703.92 = 11,693.44 : x
  2. Step 2: Convert to fraction form
    20,072.08/27,703.92 = 11,693.44/x
  3. Step 3: Cross multiply
    20,072.08x = 27,703.92 × 11,693.44
  4. Step 4: Simplify right side
    20,072.08x = 323,954,126.28
  5. Step 5: Solve for x
    x = 323,954,126.28/20,072.08
  6. Step 6: Final answer
    x = 16,139.54

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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.