Home / 20,761.40-31,137.43-5,967.02

Finding the Fourth Proportional to 20,761.40, 31,137.43 and 5,967.02

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Solution

The fourth proportional to 20,761.40, 31,137.43 and 5,967.02 is: 8,949.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761.40 : 31,137.43 = 5,967.02 : x
  2. Step 2: Convert to fraction form
    20,761.40/31,137.43 = 5,967.02/x
  3. Step 3: Cross multiply
    20,761.40x = 31,137.43 × 5,967.02
  4. Step 4: Simplify right side
    20,761.40x = 185,797,667.56
  5. Step 5: Solve for x
    x = 185,797,667.56/20,761.40
  6. Step 6: Final answer
    x = 8,949.19

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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.