Home / 21,996.56-30,380.32-14,910.68

Finding the Fourth Proportional to 21,996.56, 30,380.32 and 14,910.68

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Solution

The fourth proportional to 21,996.56, 30,380.32 and 14,910.68 is: 20,593.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996.56 : 30,380.32 = 14,910.68 : x
  2. Step 2: Convert to fraction form
    21,996.56/30,380.32 = 14,910.68/x
  3. Step 3: Cross multiply
    21,996.56x = 30,380.32 × 14,910.68
  4. Step 4: Simplify right side
    21,996.56x = 452,991,240.53
  5. Step 5: Solve for x
    x = 452,991,240.53/21,996.56
  6. Step 6: Final answer
    x = 20,593.73

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Double scale
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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.