Home / 20,213.68-27,895.73-11,261.17

Finding the Fourth Proportional to 20,213.68, 27,895.73 and 11,261.17

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Solution

The fourth proportional to 20,213.68, 27,895.73 and 11,261.17 is: 15,540.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.68 : 27,895.73 = 11,261.17 : x
  2. Step 2: Convert to fraction form
    20,213.68/27,895.73 = 11,261.17/x
  3. Step 3: Cross multiply
    20,213.68x = 27,895.73 × 11,261.17
  4. Step 4: Simplify right side
    20,213.68x = 314,138,557.80
  5. Step 5: Solve for x
    x = 314,138,557.80/20,213.68
  6. Step 6: Final answer
    x = 15,540.89

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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.