Home / 43,387.62-65,090.99-18,449.03

Finding the Fourth Proportional to 43,387.62, 65,090.99 and 18,449.03

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Solution

The fourth proportional to 43,387.62, 65,090.99 and 18,449.03 is: 27,677.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,387.62 : 65,090.99 = 18,449.03 : x
  2. Step 2: Convert to fraction form
    43,387.62/65,090.99 = 18,449.03/x
  3. Step 3: Cross multiply
    43,387.62x = 65,090.99 × 18,449.03
  4. Step 4: Simplify right side
    43,387.62x = 1,200,865,836.09
  5. Step 5: Solve for x
    x = 1,200,865,836.09/43,387.62
  6. Step 6: Final answer
    x = 27,677.62

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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.