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Finding the Fourth Proportional to 22,246.80, 33,370.20 and 21,809.40

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Solution

The fourth proportional to 22,246.80, 33,370.20 and 21,809.40 is: 32,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,246.80 : 33,370.20 = 21,809.40 : x
  2. Step 2: Convert to fraction form
    22,246.80/33,370.20 = 21,809.40/x
  3. Step 3: Cross multiply
    22,246.80x = 33,370.20 × 21,809.40
  4. Step 4: Simplify right side
    22,246.80x = 727,784,039.88
  5. Step 5: Solve for x
    x = 727,784,039.88/22,246.80
  6. Step 6: Final answer
    x = 32,714.10

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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.