Home / 20,102.46-27,741.40-11,150.06

Finding the Fourth Proportional to 20,102.46, 27,741.40 and 11,150.06

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Solution

The fourth proportional to 20,102.46, 27,741.40 and 11,150.06 is: 15,387.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102.46 : 27,741.40 = 11,150.06 : x
  2. Step 2: Convert to fraction form
    20,102.46/27,741.40 = 11,150.06/x
  3. Step 3: Cross multiply
    20,102.46x = 27,741.40 × 11,150.06
  4. Step 4: Simplify right side
    20,102.46x = 309,318,274.48
  5. Step 5: Solve for x
    x = 309,318,274.48/20,102.46
  6. Step 6: Final answer
    x = 15,387.09

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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.