Home / 20,641.24-30,961.51-6,601.11

Finding the Fourth Proportional to 20,641.24, 30,961.51 and 6,601.11

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Solution

The fourth proportional to 20,641.24, 30,961.51 and 6,601.11 is: 9,901.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,641.24 : 30,961.51 = 6,601.11 : x
  2. Step 2: Convert to fraction form
    20,641.24/30,961.51 = 6,601.11/x
  3. Step 3: Cross multiply
    20,641.24x = 30,961.51 × 6,601.11
  4. Step 4: Simplify right side
    20,641.24x = 204,380,333.28
  5. Step 5: Solve for x
    x = 204,380,333.28/20,641.24
  6. Step 6: Final answer
    x = 9,901.55

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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.