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Finding the Fourth Proportional to 33,221.40, 49,832.10 and 19,181.40

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Solution

The fourth proportional to 33,221.40, 49,832.10 and 19,181.40 is: 28,772.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,221.40 : 49,832.10 = 19,181.40 : x
  2. Step 2: Convert to fraction form
    33,221.40/49,832.10 = 19,181.40/x
  3. Step 3: Cross multiply
    33,221.40x = 49,832.10 × 19,181.40
  4. Step 4: Simplify right side
    33,221.40x = 955,849,442.94
  5. Step 5: Solve for x
    x = 955,849,442.94/33,221.40
  6. Step 6: Final answer
    x = 28,772.10

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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.