Home / 21,690.20-32,535.84-6,107.72

Finding the Fourth Proportional to 21,690.20, 32,535.84 and 6,107.72

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Solution

The fourth proportional to 21,690.20, 32,535.84 and 6,107.72 is: 9,161.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690.20 : 32,535.84 = 6,107.72 : x
  2. Step 2: Convert to fraction form
    21,690.20/32,535.84 = 6,107.72/x
  3. Step 3: Cross multiply
    21,690.20x = 32,535.84 × 6,107.72
  4. Step 4: Simplify right side
    21,690.20x = 198,719,800.68
  5. Step 5: Solve for x
    x = 198,719,800.68/21,690.20
  6. Step 6: Final answer
    x = 9,161.73

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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.