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Finding the Fourth Proportional to 22,125.64, 33,110.47 and 13,809.55

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Solution

The fourth proportional to 22,125.64, 33,110.47 and 13,809.55 is: 20,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,125.64 : 33,110.47 = 13,809.55 : x
  2. Step 2: Convert to fraction form
    22,125.64/33,110.47 = 13,809.55/x
  3. Step 3: Cross multiply
    22,125.64x = 33,110.47 × 13,809.55
  4. Step 4: Simplify right side
    22,125.64x = 457,240,690.99
  5. Step 5: Solve for x
    x = 457,240,690.99/22,125.64
  6. Step 6: Final answer
    x = 20,665.65

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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.