Home / 20,008.62-30,003.51-11,691.03

Finding the Fourth Proportional to 20,008.62, 30,003.51 and 11,691.03

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Solution

The fourth proportional to 20,008.62, 30,003.51 and 11,691.03 is: 17,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.62 : 30,003.51 = 11,691.03 : x
  2. Step 2: Convert to fraction form
    20,008.62/30,003.51 = 11,691.03/x
  3. Step 3: Cross multiply
    20,008.62x = 30,003.51 × 11,691.03
  4. Step 4: Simplify right side
    20,008.62x = 350,772,091.87
  5. Step 5: Solve for x
    x = 350,772,091.87/20,008.62
  6. Step 6: Final answer
    x = 17,531.05

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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.