Home / 20,096.28-27,732.73-11,143.79

Finding the Fourth Proportional to 20,096.28, 27,732.73 and 11,143.79

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Solution

The fourth proportional to 20,096.28, 27,732.73 and 11,143.79 is: 15,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,096.28 : 27,732.73 = 11,143.79 : x
  2. Step 2: Convert to fraction form
    20,096.28/27,732.73 = 11,143.79/x
  3. Step 3: Cross multiply
    20,096.28x = 27,732.73 × 11,143.79
  4. Step 4: Simplify right side
    20,096.28x = 309,047,719.25
  5. Step 5: Solve for x
    x = 309,047,719.25/20,096.28
  6. Step 6: Final answer
    x = 15,378.35

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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.