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Finding the Fourth Proportional to 22,276.40, 33,349.80 and 20,994.80

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Solution

The fourth proportional to 22,276.40, 33,349.80 and 20,994.80 is: 31,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,276.40 : 33,349.80 = 20,994.80 : x
  2. Step 2: Convert to fraction form
    22,276.40/33,349.80 = 20,994.80/x
  3. Step 3: Cross multiply
    22,276.40x = 33,349.80 × 20,994.80
  4. Step 4: Simplify right side
    22,276.40x = 700,172,381.04
  5. Step 5: Solve for x
    x = 700,172,381.04/22,276.40
  6. Step 6: Final answer
    x = 31,431.13

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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.