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Finding the Fourth Proportional to 28,976, 43,463.04 and 9,255.68

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Solution

The fourth proportional to 28,976, 43,463.04 and 9,255.68 is: 13,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976 : 43,463.04 = 9,255.68 : x
  2. Step 2: Convert to fraction form
    28,976/43,463.04 = 9,255.68/x
  3. Step 3: Cross multiply
    28,976x = 43,463.04 × 9,255.68
  4. Step 4: Simplify right side
    28,976x = 402,279,990.07
  5. Step 5: Solve for x
    x = 402,279,990.07/28,976
  6. Step 6: Final answer
    x = 13,883.21

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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.