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Finding the Fourth Proportional to 20,025, 30,039.93 and 6,174

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Solution

The fourth proportional to 20,025, 30,039.93 and 6,174 is: 9,261.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025 : 30,039.93 = 6,174 : x
  2. Step 2: Convert to fraction form
    20,025/30,039.93 = 6,174/x
  3. Step 3: Cross multiply
    20,025x = 30,039.93 × 6,174
  4. Step 4: Simplify right side
    20,025x = 185,466,527.82
  5. Step 5: Solve for x
    x = 185,466,527.82/20,025
  6. Step 6: Final answer
    x = 9,261.75

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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.