Home / 21,940.84-30,273.06-12,505.96

Finding the Fourth Proportional to 21,940.84, 30,273.06 and 12,505.96

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Solution

The fourth proportional to 21,940.84, 30,273.06 and 12,505.96 is: 17,255.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,940.84 : 30,273.06 = 12,505.96 : x
  2. Step 2: Convert to fraction form
    21,940.84/30,273.06 = 12,505.96/x
  3. Step 3: Cross multiply
    21,940.84x = 30,273.06 × 12,505.96
  4. Step 4: Simplify right side
    21,940.84x = 378,593,677.44
  5. Step 5: Solve for x
    x = 378,593,677.44/21,940.84
  6. Step 6: Final answer
    x = 17,255.20

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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.