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Finding the Fourth Proportional to 28,992, 43,488 and 7,104

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Solution

The fourth proportional to 28,992, 43,488 and 7,104 is: 10,656

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992 : 43,488 = 7,104 : x
  2. Step 2: Convert to fraction form
    28,992/43,488 = 7,104/x
  3. Step 3: Cross multiply
    28,992x = 43,488 × 7,104
  4. Step 4: Simplify right side
    28,992x = 308,938,752
  5. Step 5: Solve for x
    x = 308,938,752/28,992
  6. Step 6: Final answer
    x = 10,656

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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.