Home / 20,488.25-30,736.46-6,451.82

Finding the Fourth Proportional to 20,488.25, 30,736.46 and 6,451.82

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Solution

The fourth proportional to 20,488.25, 30,736.46 and 6,451.82 is: 9,679.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488.25 : 30,736.46 = 6,451.82 : x
  2. Step 2: Convert to fraction form
    20,488.25/30,736.46 = 6,451.82/x
  3. Step 3: Cross multiply
    20,488.25x = 30,736.46 × 6,451.82
  4. Step 4: Simplify right side
    20,488.25x = 198,306,085.07
  5. Step 5: Solve for x
    x = 198,306,085.07/20,488.25
  6. Step 6: Final answer
    x = 9,679.01

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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.