Home / 20,260.09-30,380.41-9,577.55

Finding the Fourth Proportional to 20,260.09, 30,380.41 and 9,577.55

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Solution

The fourth proportional to 20,260.09, 30,380.41 and 9,577.55 is: 14,361.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.09 : 30,380.41 = 9,577.55 : x
  2. Step 2: Convert to fraction form
    20,260.09/30,380.41 = 9,577.55/x
  3. Step 3: Cross multiply
    20,260.09x = 30,380.41 × 9,577.55
  4. Step 4: Simplify right side
    20,260.09x = 290,969,983.72
  5. Step 5: Solve for x
    x = 290,969,983.72/20,260.09
  6. Step 6: Final answer
    x = 14,361.73

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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.