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Finding the Fourth Proportional to 22,136.80, 33,208.40 and 7,346.40

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Solution

The fourth proportional to 22,136.80, 33,208.40 and 7,346.40 is: 11,020.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,136.80 : 33,208.40 = 7,346.40 : x
  2. Step 2: Convert to fraction form
    22,136.80/33,208.40 = 7,346.40/x
  3. Step 3: Cross multiply
    22,136.80x = 33,208.40 × 7,346.40
  4. Step 4: Simplify right side
    22,136.80x = 243,962,189.76
  5. Step 5: Solve for x
    x = 243,962,189.76/22,136.80
  6. Step 6: Final answer
    x = 11,020.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.