Home / 43,207.31-64,836.48-18,245.75

Finding the Fourth Proportional to 43,207.31, 64,836.48 and 18,245.75

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Solution

The fourth proportional to 43,207.31, 64,836.48 and 18,245.75 is: 27,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,207.31 : 64,836.48 = 18,245.75 : x
  2. Step 2: Convert to fraction form
    43,207.31/64,836.48 = 18,245.75/x
  3. Step 3: Cross multiply
    43,207.31x = 64,836.48 × 18,245.75
  4. Step 4: Simplify right side
    43,207.31x = 1,182,989,949.20
  5. Step 5: Solve for x
    x = 1,182,989,949.20/43,207.31
  6. Step 6: Final answer
    x = 27,379.39

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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.