Home / 20,311.79-30,456.52-6,267.99

Finding the Fourth Proportional to 20,311.79, 30,456.52 and 6,267.99

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Solution

The fourth proportional to 20,311.79, 30,456.52 and 6,267.99 is: 9,398.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,311.79 : 30,456.52 = 6,267.99 : x
  2. Step 2: Convert to fraction form
    20,311.79/30,456.52 = 6,267.99/x
  3. Step 3: Cross multiply
    20,311.79x = 30,456.52 × 6,267.99
  4. Step 4: Simplify right side
    20,311.79x = 190,901,162.79
  5. Step 5: Solve for x
    x = 190,901,162.79/20,311.79
  6. Step 6: Final answer
    x = 9,398.54

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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.