Home / 20,101.41-27,739.23-11,149.74

Finding the Fourth Proportional to 20,101.41, 27,739.23 and 11,149.74

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Solution

The fourth proportional to 20,101.41, 27,739.23 and 11,149.74 is: 15,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.41 : 27,739.23 = 11,149.74 : x
  2. Step 2: Convert to fraction form
    20,101.41/27,739.23 = 11,149.74/x
  3. Step 3: Cross multiply
    20,101.41x = 27,739.23 × 11,149.74
  4. Step 4: Simplify right side
    20,101.41x = 309,285,202.30
  5. Step 5: Solve for x
    x = 309,285,202.30/20,101.41
  6. Step 6: Final answer
    x = 15,386.24

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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.