Home / 20,177.28-30,224.64-9,780.48

Finding the Fourth Proportional to 20,177.28, 30,224.64 and 9,780.48

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Solution

The fourth proportional to 20,177.28, 30,224.64 and 9,780.48 is: 14,650.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.28 : 30,224.64 = 9,780.48 : x
  2. Step 2: Convert to fraction form
    20,177.28/30,224.64 = 9,780.48/x
  3. Step 3: Cross multiply
    20,177.28x = 30,224.64 × 9,780.48
  4. Step 4: Simplify right side
    20,177.28x = 295,611,487.03
  5. Step 5: Solve for x
    x = 295,611,487.03/20,177.28
  6. Step 6: Final answer
    x = 14,650.71

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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.