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Finding the Fourth Proportional to 28,937.02, 43,407 and 8,162.14

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Solution

The fourth proportional to 28,937.02, 43,407 and 8,162.14 is: 12,243.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,937.02 : 43,407 = 8,162.14 : x
  2. Step 2: Convert to fraction form
    28,937.02/43,407 = 8,162.14/x
  3. Step 3: Cross multiply
    28,937.02x = 43,407 × 8,162.14
  4. Step 4: Simplify right side
    28,937.02x = 354,294,010.98
  5. Step 5: Solve for x
    x = 354,294,010.98/28,937.02
  6. Step 6: Final answer
    x = 12,243.62

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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.