Home / 20,009.23-30,021.92-8,908.33

Finding the Fourth Proportional to 20,009.23, 30,021.92 and 8,908.33

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Solution

The fourth proportional to 20,009.23, 30,021.92 and 8,908.33 is: 13,366.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.23 : 30,021.92 = 8,908.33 : x
  2. Step 2: Convert to fraction form
    20,009.23/30,021.92 = 8,908.33/x
  3. Step 3: Cross multiply
    20,009.23x = 30,021.92 × 8,908.33
  4. Step 4: Simplify right side
    20,009.23x = 267,445,115.64
  5. Step 5: Solve for x
    x = 267,445,115.64/20,009.23
  6. Step 6: Final answer
    x = 13,366.09

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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.