Home / 22,418.40-30,940.11-13,470.60

Finding the Fourth Proportional to 22,418.40, 30,940.11 and 13,470.60

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Solution

The fourth proportional to 22,418.40, 30,940.11 and 13,470.60 is: 18,591.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,418.40 : 30,940.11 = 13,470.60 : x
  2. Step 2: Convert to fraction form
    22,418.40/30,940.11 = 13,470.60/x
  3. Step 3: Cross multiply
    22,418.40x = 30,940.11 × 13,470.60
  4. Step 4: Simplify right side
    22,418.40x = 416,781,845.77
  5. Step 5: Solve for x
    x = 416,781,845.77/22,418.40
  6. Step 6: Final answer
    x = 18,591.06

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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.