Home / 20,105.36-30,160.10-6,954.66

Finding the Fourth Proportional to 20,105.36, 30,160.10 and 6,954.66

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Solution

The fourth proportional to 20,105.36, 30,160.10 and 6,954.66 is: 10,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105.36 : 30,160.10 = 6,954.66 : x
  2. Step 2: Convert to fraction form
    20,105.36/30,160.10 = 6,954.66/x
  3. Step 3: Cross multiply
    20,105.36x = 30,160.10 × 6,954.66
  4. Step 4: Simplify right side
    20,105.36x = 209,753,219.33
  5. Step 5: Solve for x
    x = 209,753,219.33/20,105.36
  6. Step 6: Final answer
    x = 10,432.70

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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.