Home / 20,213.45-27,894.78-11,261.46

Finding the Fourth Proportional to 20,213.45, 27,894.78 and 11,261.46

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Solution

The fourth proportional to 20,213.45, 27,894.78 and 11,261.46 is: 15,540.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.45 : 27,894.78 = 11,261.46 : x
  2. Step 2: Convert to fraction form
    20,213.45/27,894.78 = 11,261.46/x
  3. Step 3: Cross multiply
    20,213.45x = 27,894.78 × 11,261.46
  4. Step 4: Simplify right side
    20,213.45x = 314,136,053.78
  5. Step 5: Solve for x
    x = 314,136,053.78/20,213.45
  6. Step 6: Final answer
    x = 15,540.94

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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.