Home / 20,166.32-27,829.54-11,213.63

Finding the Fourth Proportional to 20,166.32, 27,829.54 and 11,213.63

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Solution

The fourth proportional to 20,166.32, 27,829.54 and 11,213.63 is: 15,474.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.32 : 27,829.54 = 11,213.63 : x
  2. Step 2: Convert to fraction form
    20,166.32/27,829.54 = 11,213.63/x
  3. Step 3: Cross multiply
    20,166.32x = 27,829.54 × 11,213.63
  4. Step 4: Simplify right side
    20,166.32x = 312,070,104.73
  5. Step 5: Solve for x
    x = 312,070,104.73/20,166.32
  6. Step 6: Final answer
    x = 15,474.82

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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.