Home / 20,241.88-27,933.42-11,290.12

Finding the Fourth Proportional to 20,241.88, 27,933.42 and 11,290.12

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Solution

The fourth proportional to 20,241.88, 27,933.42 and 11,290.12 is: 15,580.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.88 : 27,933.42 = 11,290.12 : x
  2. Step 2: Convert to fraction form
    20,241.88/27,933.42 = 11,290.12/x
  3. Step 3: Cross multiply
    20,241.88x = 27,933.42 × 11,290.12
  4. Step 4: Simplify right side
    20,241.88x = 315,371,663.81
  5. Step 5: Solve for x
    x = 315,371,663.81/20,241.88
  6. Step 6: Final answer
    x = 15,580.16

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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.