Home / 28,908.60-43,372.62-11,380.20

Finding the Fourth Proportional to 28,908.60, 43,372.62 and 11,380.20

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Solution

The fourth proportional to 28,908.60, 43,372.62 and 11,380.20 is: 17,074.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,908.60 : 43,372.62 = 11,380.20 : x
  2. Step 2: Convert to fraction form
    28,908.60/43,372.62 = 11,380.20/x
  3. Step 3: Cross multiply
    28,908.60x = 43,372.62 × 11,380.20
  4. Step 4: Simplify right side
    28,908.60x = 493,589,090.12
  5. Step 5: Solve for x
    x = 493,589,090.12/28,908.60
  6. Step 6: Final answer
    x = 17,074.13

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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.