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Finding the Fourth Proportional to 28,816, 43,224 and 9,360

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Solution

The fourth proportional to 28,816, 43,224 and 9,360 is: 14,040

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,816 : 43,224 = 9,360 : x
  2. Step 2: Convert to fraction form
    28,816/43,224 = 9,360/x
  3. Step 3: Cross multiply
    28,816x = 43,224 × 9,360
  4. Step 4: Simplify right side
    28,816x = 404,576,640
  5. Step 5: Solve for x
    x = 404,576,640/28,816
  6. Step 6: Final answer
    x = 14,040

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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.