Home / 20,094.89-27,732.60-11,145.20

Finding the Fourth Proportional to 20,094.89, 27,732.60 and 11,145.20

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Solution

The fourth proportional to 20,094.89, 27,732.60 and 11,145.20 is: 15,381.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,094.89 : 27,732.60 = 11,145.20 : x
  2. Step 2: Convert to fraction form
    20,094.89/27,732.60 = 11,145.20/x
  3. Step 3: Cross multiply
    20,094.89x = 27,732.60 × 11,145.20
  4. Step 4: Simplify right side
    20,094.89x = 309,085,234.86
  5. Step 5: Solve for x
    x = 309,085,234.86/20,094.89
  6. Step 6: Final answer
    x = 15,381.29

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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.