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Finding the Fourth Proportional to 69,470, 104,222.28 and 20,222

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Solution

The fourth proportional to 69,470, 104,222.28 and 20,222 is: 30,338.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,470 : 104,222.28 = 20,222 : x
  2. Step 2: Convert to fraction form
    69,470/104,222.28 = 20,222/x
  3. Step 3: Cross multiply
    69,470x = 104,222.28 × 20,222
  4. Step 4: Simplify right side
    69,470x = 2,107,582,946.16
  5. Step 5: Solve for x
    x = 2,107,582,946.16/69,470
  6. Step 6: Final answer
    x = 30,338.03

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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.