Home / 21,690.27-32,532.53-6,109.11

Finding the Fourth Proportional to 21,690.27, 32,532.53 and 6,109.11

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Solution

The fourth proportional to 21,690.27, 32,532.53 and 6,109.11 is: 9,162.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690.27 : 32,532.53 = 6,109.11 : x
  2. Step 2: Convert to fraction form
    21,690.27/32,532.53 = 6,109.11/x
  3. Step 3: Cross multiply
    21,690.27x = 32,532.53 × 6,109.11
  4. Step 4: Simplify right side
    21,690.27x = 198,744,773.80
  5. Step 5: Solve for x
    x = 198,744,773.80/21,690.27
  6. Step 6: Final answer
    x = 9,162.85

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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.