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Finding the Fourth Proportional to 28,743, 43,086.84 and 9,007.80

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Solution

The fourth proportional to 28,743, 43,086.84 and 9,007.80 is: 13,503.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,743 : 43,086.84 = 9,007.80 : x
  2. Step 2: Convert to fraction form
    28,743/43,086.84 = 9,007.80/x
  3. Step 3: Cross multiply
    28,743x = 43,086.84 × 9,007.80
  4. Step 4: Simplify right side
    28,743x = 388,117,637.35
  5. Step 5: Solve for x
    x = 388,117,637.35/28,743
  6. Step 6: Final answer
    x = 13,503.03

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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.