Home / 43,311.38-64,992.98-18,687.38

Finding the Fourth Proportional to 43,311.38, 64,992.98 and 18,687.38

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Solution

The fourth proportional to 43,311.38, 64,992.98 and 18,687.38 is: 28,042.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,311.38 : 64,992.98 = 18,687.38 : x
  2. Step 2: Convert to fraction form
    43,311.38/64,992.98 = 18,687.38/x
  3. Step 3: Cross multiply
    43,311.38x = 64,992.98 × 18,687.38
  4. Step 4: Simplify right side
    43,311.38x = 1,214,548,236.35
  5. Step 5: Solve for x
    x = 1,214,548,236.35/43,311.38
  6. Step 6: Final answer
    x = 28,042.25

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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.