Home / 20,649.45-30,976.23-6,605.96

Finding the Fourth Proportional to 20,649.45, 30,976.23 and 6,605.96

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Solution

The fourth proportional to 20,649.45, 30,976.23 and 6,605.96 is: 9,909.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649.45 : 30,976.23 = 6,605.96 : x
  2. Step 2: Convert to fraction form
    20,649.45/30,976.23 = 6,605.96/x
  3. Step 3: Cross multiply
    20,649.45x = 30,976.23 × 6,605.96
  4. Step 4: Simplify right side
    20,649.45x = 204,627,581.45
  5. Step 5: Solve for x
    x = 204,627,581.45/20,649.45
  6. Step 6: Final answer
    x = 9,909.59

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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.