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Finding the Fourth Proportional to 20,242.20, 30,364.21 and 6,201.20

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Solution

The fourth proportional to 20,242.20, 30,364.21 and 6,201.20 is: 9,302.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.20 : 30,364.21 = 6,201.20 : x
  2. Step 2: Convert to fraction form
    20,242.20/30,364.21 = 6,201.20/x
  3. Step 3: Cross multiply
    20,242.20x = 30,364.21 × 6,201.20
  4. Step 4: Simplify right side
    20,242.20x = 188,294,583.96
  5. Step 5: Solve for x
    x = 188,294,583.96/20,242.20
  6. Step 6: Final answer
    x = 9,302.08

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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.