Home / 20,311.88-30,456.50-6,267.92

Finding the Fourth Proportional to 20,311.88, 30,456.50 and 6,267.92

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Solution

The fourth proportional to 20,311.88, 30,456.50 and 6,267.92 is: 9,398.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,311.88 : 30,456.50 = 6,267.92 : x
  2. Step 2: Convert to fraction form
    20,311.88/30,456.50 = 6,267.92/x
  3. Step 3: Cross multiply
    20,311.88x = 30,456.50 × 6,267.92
  4. Step 4: Simplify right side
    20,311.88x = 190,898,905.48
  5. Step 5: Solve for x
    x = 190,898,905.48/20,311.88
  6. Step 6: Final answer
    x = 9,398.39

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1.5x scale

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.