Home / 20,166.62-27,829.31-11,214.09

Finding the Fourth Proportional to 20,166.62, 27,829.31 and 11,214.09

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Solution

The fourth proportional to 20,166.62, 27,829.31 and 11,214.09 is: 15,475.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.62 : 27,829.31 = 11,214.09 : x
  2. Step 2: Convert to fraction form
    20,166.62/27,829.31 = 11,214.09/x
  3. Step 3: Cross multiply
    20,166.62x = 27,829.31 × 11,214.09
  4. Step 4: Simplify right side
    20,166.62x = 312,080,330.91
  5. Step 5: Solve for x
    x = 312,080,330.91/20,166.62
  6. Step 6: Final answer
    x = 15,475.10

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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.