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Finding the Fourth Proportional to 28,751.10, 43,128.48 and 9,030.44

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Solution

The fourth proportional to 28,751.10, 43,128.48 and 9,030.44 is: 13,546.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,751.10 : 43,128.48 = 9,030.44 : x
  2. Step 2: Convert to fraction form
    28,751.10/43,128.48 = 9,030.44/x
  3. Step 3: Cross multiply
    28,751.10x = 43,128.48 × 9,030.44
  4. Step 4: Simplify right side
    28,751.10x = 389,469,150.93
  5. Step 5: Solve for x
    x = 389,469,150.93/28,751.10
  6. Step 6: Final answer
    x = 13,546.23

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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.