Home / 20,177.96-30,257.72-10,816.38

Finding the Fourth Proportional to 20,177.96, 30,257.72 and 10,816.38

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Solution

The fourth proportional to 20,177.96, 30,257.72 and 10,816.38 is: 16,219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.96 : 30,257.72 = 10,816.38 : x
  2. Step 2: Convert to fraction form
    20,177.96/30,257.72 = 10,816.38/x
  3. Step 3: Cross multiply
    20,177.96x = 30,257.72 × 10,816.38
  4. Step 4: Simplify right side
    20,177.96x = 327,278,997.45
  5. Step 5: Solve for x
    x = 327,278,997.45/20,177.96
  6. Step 6: Final answer
    x = 16,219.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.