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Finding the Fourth Proportional to 28,668.60, 43,004.93 and 7,608.47

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Solution

The fourth proportional to 28,668.60, 43,004.93 and 7,608.47 is: 11,413.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,668.60 : 43,004.93 = 7,608.47 : x
  2. Step 2: Convert to fraction form
    28,668.60/43,004.93 = 7,608.47/x
  3. Step 3: Cross multiply
    28,668.60x = 43,004.93 × 7,608.47
  4. Step 4: Simplify right side
    28,668.60x = 327,201,466.69
  5. Step 5: Solve for x
    x = 327,201,466.69/28,668.60
  6. Step 6: Final answer
    x = 11,413.23

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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.