Home / 20,101.53-27,740.24-11,149.18

Finding the Fourth Proportional to 20,101.53, 27,740.24 and 11,149.18

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Solution

The fourth proportional to 20,101.53, 27,740.24 and 11,149.18 is: 15,385.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.53 : 27,740.24 = 11,149.18 : x
  2. Step 2: Convert to fraction form
    20,101.53/27,740.24 = 11,149.18/x
  3. Step 3: Cross multiply
    20,101.53x = 27,740.24 × 11,149.18
  4. Step 4: Simplify right side
    20,101.53x = 309,281,021.54
  5. Step 5: Solve for x
    x = 309,281,021.54/20,101.53
  6. Step 6: Final answer
    x = 15,385.94

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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.