Home / 20,004.20-27,609.64-11,512.04

Finding the Fourth Proportional to 20,004.20, 27,609.64 and 11,512.04

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Solution

The fourth proportional to 20,004.20, 27,609.64 and 11,512.04 is: 15,888.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.20 : 27,609.64 = 11,512.04 : x
  2. Step 2: Convert to fraction form
    20,004.20/27,609.64 = 11,512.04/x
  3. Step 3: Cross multiply
    20,004.20x = 27,609.64 × 11,512.04
  4. Step 4: Simplify right side
    20,004.20x = 317,843,280.07
  5. Step 5: Solve for x
    x = 317,843,280.07/20,004.20
  6. Step 6: Final answer
    x = 15,888.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.