Home / 20,166.39-27,829.38-11,213.58

Finding the Fourth Proportional to 20,166.39, 27,829.38 and 11,213.58

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Solution

The fourth proportional to 20,166.39, 27,829.38 and 11,213.58 is: 15,474.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.39 : 27,829.38 = 11,213.58 : x
  2. Step 2: Convert to fraction form
    20,166.39/27,829.38 = 11,213.58/x
  3. Step 3: Cross multiply
    20,166.39x = 27,829.38 × 11,213.58
  4. Step 4: Simplify right side
    20,166.39x = 312,066,978.98
  5. Step 5: Solve for x
    x = 312,066,978.98/20,166.39
  6. Step 6: Final answer
    x = 15,474.61

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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.