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Finding the Fourth Proportional to 20,201.01, 30,302.52 and 7,722.12

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Solution

The fourth proportional to 20,201.01, 30,302.52 and 7,722.12 is: 11,583.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.01 : 30,302.52 = 7,722.12 : x
  2. Step 2: Convert to fraction form
    20,201.01/30,302.52 = 7,722.12/x
  3. Step 3: Cross multiply
    20,201.01x = 30,302.52 × 7,722.12
  4. Step 4: Simplify right side
    20,201.01x = 233,999,695.74
  5. Step 5: Solve for x
    x = 233,999,695.74/20,201.01
  6. Step 6: Final answer
    x = 11,583.56

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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.