Home / 20,096.90-27,734.36-11,145.23

Finding the Fourth Proportional to 20,096.90, 27,734.36 and 11,145.23

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Solution

The fourth proportional to 20,096.90, 27,734.36 and 11,145.23 is: 15,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,096.90 : 27,734.36 = 11,145.23 : x
  2. Step 2: Convert to fraction form
    20,096.90/27,734.36 = 11,145.23/x
  3. Step 3: Cross multiply
    20,096.90x = 27,734.36 × 11,145.23
  4. Step 4: Simplify right side
    20,096.90x = 309,105,821.10
  5. Step 5: Solve for x
    x = 309,105,821.10/20,096.90
  6. Step 6: Final answer
    x = 15,380.77

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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.