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Finding the Fourth Proportional to 22,388, 33,581.80 and 8,347.55

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Solution

The fourth proportional to 22,388, 33,581.80 and 8,347.55 is: 12,521.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,388 : 33,581.80 = 8,347.55 : x
  2. Step 2: Convert to fraction form
    22,388/33,581.80 = 8,347.55/x
  3. Step 3: Cross multiply
    22,388x = 33,581.80 × 8,347.55
  4. Step 4: Simplify right side
    22,388x = 280,325,754.59
  5. Step 5: Solve for x
    x = 280,325,754.59/22,388
  6. Step 6: Final answer
    x = 12,521.25

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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.