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Finding the Fourth Proportional to 20,009.00, 30,009.66 and 9,332.42

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Solution

The fourth proportional to 20,009.00, 30,009.66 and 9,332.42 is: 13,996.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.00 : 30,009.66 = 9,332.42 : x
  2. Step 2: Convert to fraction form
    20,009.00/30,009.66 = 9,332.42/x
  3. Step 3: Cross multiply
    20,009.00x = 30,009.66 × 9,332.42
  4. Step 4: Simplify right side
    20,009.00x = 280,062,556.29
  5. Step 5: Solve for x
    x = 280,062,556.29/20,009.00
  6. Step 6: Final answer
    x = 13,996.83

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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.