Home / 20,254.56-27,952.87-11,181.70

Finding the Fourth Proportional to 20,254.56, 27,952.87 and 11,181.70

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Solution

The fourth proportional to 20,254.56, 27,952.87 and 11,181.70 is: 15,431.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,254.56 : 27,952.87 = 11,181.70 : x
  2. Step 2: Convert to fraction form
    20,254.56/27,952.87 = 11,181.70/x
  3. Step 3: Cross multiply
    20,254.56x = 27,952.87 × 11,181.70
  4. Step 4: Simplify right side
    20,254.56x = 312,560,508.64
  5. Step 5: Solve for x
    x = 312,560,508.64/20,254.56
  6. Step 6: Final answer
    x = 15,431.61

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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.