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Finding the Fourth Proportional to 20,150.29, 30,222.06 and 5,359.42

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Solution

The fourth proportional to 20,150.29, 30,222.06 and 5,359.42 is: 8,038.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.29 : 30,222.06 = 5,359.42 : x
  2. Step 2: Convert to fraction form
    20,150.29/30,222.06 = 5,359.42/x
  3. Step 3: Cross multiply
    20,150.29x = 30,222.06 × 5,359.42
  4. Step 4: Simplify right side
    20,150.29x = 161,972,712.81
  5. Step 5: Solve for x
    x = 161,972,712.81/20,150.29
  6. Step 6: Final answer
    x = 8,038.23

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.