Home / 20,176.82-27,842.77-11,678.32

Finding the Fourth Proportional to 20,176.82, 27,842.77 and 11,678.32

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Solution

The fourth proportional to 20,176.82, 27,842.77 and 11,678.32 is: 16,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.82 : 27,842.77 = 11,678.32 : x
  2. Step 2: Convert to fraction form
    20,176.82/27,842.77 = 11,678.32/x
  3. Step 3: Cross multiply
    20,176.82x = 27,842.77 × 11,678.32
  4. Step 4: Simplify right side
    20,176.82x = 325,156,678.94
  5. Step 5: Solve for x
    x = 325,156,678.94/20,176.82
  6. Step 6: Final answer
    x = 16,115.36

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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.