Home / 20,102.13-27,741.57-11,150.46

Finding the Fourth Proportional to 20,102.13, 27,741.57 and 11,150.46

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Solution

The fourth proportional to 20,102.13, 27,741.57 and 11,150.46 is: 15,387.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102.13 : 27,741.57 = 11,150.46 : x
  2. Step 2: Convert to fraction form
    20,102.13/27,741.57 = 11,150.46/x
  3. Step 3: Cross multiply
    20,102.13x = 27,741.57 × 11,150.46
  4. Step 4: Simplify right side
    20,102.13x = 309,331,266.62
  5. Step 5: Solve for x
    x = 309,331,266.62/20,102.13
  6. Step 6: Final answer
    x = 15,387.98

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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.