Home / 20,090.73-27,723.90-11,137.93

Finding the Fourth Proportional to 20,090.73, 27,723.90 and 11,137.93

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Solution

The fourth proportional to 20,090.73, 27,723.90 and 11,137.93 is: 15,369.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090.73 : 27,723.90 = 11,137.93 : x
  2. Step 2: Convert to fraction form
    20,090.73/27,723.90 = 11,137.93/x
  3. Step 3: Cross multiply
    20,090.73x = 27,723.90 × 11,137.93
  4. Step 4: Simplify right side
    20,090.73x = 308,786,857.53
  5. Step 5: Solve for x
    x = 308,786,857.53/20,090.73
  6. Step 6: Final answer
    x = 15,369.62

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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.