Home / 21,910.48-30,236.88-12,481.36

Finding the Fourth Proportional to 21,910.48, 30,236.88 and 12,481.36

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Solution

The fourth proportional to 21,910.48, 30,236.88 and 12,481.36 is: 17,224.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,910.48 : 30,236.88 = 12,481.36 : x
  2. Step 2: Convert to fraction form
    21,910.48/30,236.88 = 12,481.36/x
  3. Step 3: Cross multiply
    21,910.48x = 30,236.88 × 12,481.36
  4. Step 4: Simplify right side
    21,910.48x = 377,397,384.56
  5. Step 5: Solve for x
    x = 377,397,384.56/21,910.48
  6. Step 6: Final answer
    x = 17,224.51

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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.