Home / 22,190.80-33,278.10-7,400.20

Finding the Fourth Proportional to 22,190.80, 33,278.10 and 7,400.20

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Solution

The fourth proportional to 22,190.80, 33,278.10 and 7,400.20 is: 11,097.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,190.80 : 33,278.10 = 7,400.20 : x
  2. Step 2: Convert to fraction form
    22,190.80/33,278.10 = 7,400.20/x
  3. Step 3: Cross multiply
    22,190.80x = 33,278.10 × 7,400.20
  4. Step 4: Simplify right side
    22,190.80x = 246,264,595.62
  5. Step 5: Solve for x
    x = 246,264,595.62/22,190.80
  6. Step 6: Final answer
    x = 11,097.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.