Home / 20,114.46-27,757.95-11,161.97

Finding the Fourth Proportional to 20,114.46, 27,757.95 and 11,161.97

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Solution

The fourth proportional to 20,114.46, 27,757.95 and 11,161.97 is: 15,403.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.46 : 27,757.95 = 11,161.97 : x
  2. Step 2: Convert to fraction form
    20,114.46/27,757.95 = 11,161.97/x
  3. Step 3: Cross multiply
    20,114.46x = 27,757.95 × 11,161.97
  4. Step 4: Simplify right side
    20,114.46x = 309,833,266.37
  5. Step 5: Solve for x
    x = 309,833,266.37/20,114.46
  6. Step 6: Final answer
    x = 15,403.51

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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.