Home / 20,180.16-27,849.42-11,228.04

Finding the Fourth Proportional to 20,180.16, 27,849.42 and 11,228.04

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Solution

The fourth proportional to 20,180.16, 27,849.42 and 11,228.04 is: 15,495.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.16 : 27,849.42 = 11,228.04 : x
  2. Step 2: Convert to fraction form
    20,180.16/27,849.42 = 11,228.04/x
  3. Step 3: Cross multiply
    20,180.16x = 27,849.42 × 11,228.04
  4. Step 4: Simplify right side
    20,180.16x = 312,694,401.74
  5. Step 5: Solve for x
    x = 312,694,401.74/20,180.16
  6. Step 6: Final answer
    x = 15,495.14

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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.