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Finding the Fourth Proportional to 22,213.70, 33,308.40 and 9,051.20

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Solution

The fourth proportional to 22,213.70, 33,308.40 and 9,051.20 is: 13,571.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,213.70 : 33,308.40 = 9,051.20 : x
  2. Step 2: Convert to fraction form
    22,213.70/33,308.40 = 9,051.20/x
  3. Step 3: Cross multiply
    22,213.70x = 33,308.40 × 9,051.20
  4. Step 4: Simplify right side
    22,213.70x = 301,480,990.08
  5. Step 5: Solve for x
    x = 301,480,990.08/22,213.70
  6. Step 6: Final answer
    x = 13,571.85

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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.