Home / 20,089.42-27,723.60-11,137.06

Finding the Fourth Proportional to 20,089.42, 27,723.60 and 11,137.06

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Solution

The fourth proportional to 20,089.42, 27,723.60 and 11,137.06 is: 15,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.42 : 27,723.60 = 11,137.06 : x
  2. Step 2: Convert to fraction form
    20,089.42/27,723.60 = 11,137.06/x
  3. Step 3: Cross multiply
    20,089.42x = 27,723.60 × 11,137.06
  4. Step 4: Simplify right side
    20,089.42x = 308,759,396.62
  5. Step 5: Solve for x
    x = 308,759,396.62/20,089.42
  6. Step 6: Final answer
    x = 15,369.25

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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.