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Finding the Fourth Proportional to 33,221.71, 49,751.62 and 21,970.20

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Solution

The fourth proportional to 33,221.71, 49,751.62 and 21,970.20 is: 32,901.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,221.71 : 49,751.62 = 21,970.20 : x
  2. Step 2: Convert to fraction form
    33,221.71/49,751.62 = 21,970.20/x
  3. Step 3: Cross multiply
    33,221.71x = 49,751.62 × 21,970.20
  4. Step 4: Simplify right side
    33,221.71x = 1,093,053,173.37
  5. Step 5: Solve for x
    x = 1,093,053,173.37/33,221.71
  6. Step 6: Final answer
    x = 32,901.77

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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.