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Finding the Fourth Proportional to 28,903.02, 43,354.52 and 8,126.52

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Solution

The fourth proportional to 28,903.02, 43,354.52 and 8,126.52 is: 12,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.02 : 43,354.52 = 8,126.52 : x
  2. Step 2: Convert to fraction form
    28,903.02/43,354.52 = 8,126.52/x
  3. Step 3: Cross multiply
    28,903.02x = 43,354.52 × 8,126.52
  4. Step 4: Simplify right side
    28,903.02x = 352,321,373.87
  5. Step 5: Solve for x
    x = 352,321,373.87/28,903.02
  6. Step 6: Final answer
    x = 12,189.78

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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.