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Finding the Fourth Proportional to 22,223, 30,670.61 and 12,666.36

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Solution

The fourth proportional to 22,223, 30,670.61 and 12,666.36 is: 17,481.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,223 : 30,670.61 = 12,666.36 : x
  2. Step 2: Convert to fraction form
    22,223/30,670.61 = 12,666.36/x
  3. Step 3: Cross multiply
    22,223x = 30,670.61 × 12,666.36
  4. Step 4: Simplify right side
    22,223x = 388,484,987.68
  5. Step 5: Solve for x
    x = 388,484,987.68/22,223
  6. Step 6: Final answer
    x = 17,481.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.