Home / 20,099.85-27,739.26-11,149.04

Finding the Fourth Proportional to 20,099.85, 27,739.26 and 11,149.04

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Solution

The fourth proportional to 20,099.85, 27,739.26 and 11,149.04 is: 15,386.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099.85 : 27,739.26 = 11,149.04 : x
  2. Step 2: Convert to fraction form
    20,099.85/27,739.26 = 11,149.04/x
  3. Step 3: Cross multiply
    20,099.85x = 27,739.26 × 11,149.04
  4. Step 4: Simplify right side
    20,099.85x = 309,266,188.66
  5. Step 5: Solve for x
    x = 309,266,188.66/20,099.85
  6. Step 6: Final answer
    x = 15,386.50

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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.