Home / 22,203.12-33,266.88-19,398.90

Finding the Fourth Proportional to 22,203.12, 33,266.88 and 19,398.90

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Solution

The fourth proportional to 22,203.12, 33,266.88 and 19,398.90 is: 29,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,203.12 : 33,266.88 = 19,398.90 : x
  2. Step 2: Convert to fraction form
    22,203.12/33,266.88 = 19,398.90/x
  3. Step 3: Cross multiply
    22,203.12x = 33,266.88 × 19,398.90
  4. Step 4: Simplify right side
    22,203.12x = 645,340,878.43
  5. Step 5: Solve for x
    x = 645,340,878.43/22,203.12
  6. Step 6: Final answer
    x = 29,065.32

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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.