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Finding the Fourth Proportional to 20,168.67, 30,253.01 and 6,318.75

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Solution

The fourth proportional to 20,168.67, 30,253.01 and 6,318.75 is: 9,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.67 : 30,253.01 = 6,318.75 : x
  2. Step 2: Convert to fraction form
    20,168.67/30,253.01 = 6,318.75/x
  3. Step 3: Cross multiply
    20,168.67x = 30,253.01 × 6,318.75
  4. Step 4: Simplify right side
    20,168.67x = 191,161,175.34
  5. Step 5: Solve for x
    x = 191,161,175.34/20,168.67
  6. Step 6: Final answer
    x = 9,478.13

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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.