Home / 43,211.25-64,842.39-18,249.68

Finding the Fourth Proportional to 43,211.25, 64,842.39 and 18,249.68

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Solution

The fourth proportional to 43,211.25, 64,842.39 and 18,249.68 is: 27,385.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,211.25 : 64,842.39 = 18,249.68 : x
  2. Step 2: Convert to fraction form
    43,211.25/64,842.39 = 18,249.68/x
  3. Step 3: Cross multiply
    43,211.25x = 64,842.39 × 18,249.68
  4. Step 4: Simplify right side
    43,211.25x = 1,183,353,030.04
  5. Step 5: Solve for x
    x = 1,183,353,030.04/43,211.25
  6. Step 6: Final answer
    x = 27,385.30

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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.