Home / 20,736.44-28,616.73-11,305.07

Finding the Fourth Proportional to 20,736.44, 28,616.73 and 11,305.07

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Solution

The fourth proportional to 20,736.44, 28,616.73 and 11,305.07 is: 15,601.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.44 : 28,616.73 = 11,305.07 : x
  2. Step 2: Convert to fraction form
    20,736.44/28,616.73 = 11,305.07/x
  3. Step 3: Cross multiply
    20,736.44x = 28,616.73 × 11,305.07
  4. Step 4: Simplify right side
    20,736.44x = 323,514,135.82
  5. Step 5: Solve for x
    x = 323,514,135.82/20,736.44
  6. Step 6: Final answer
    x = 15,601.24

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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.