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Finding the Fourth Proportional to 34,046.43, 51,034.43 and 12,980.81

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Solution

The fourth proportional to 34,046.43, 51,034.43 and 12,980.81 is: 19,457.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,046.43 : 51,034.43 = 12,980.81 : x
  2. Step 2: Convert to fraction form
    34,046.43/51,034.43 = 12,980.81/x
  3. Step 3: Cross multiply
    34,046.43x = 51,034.43 × 12,980.81
  4. Step 4: Simplify right side
    34,046.43x = 662,467,919.21
  5. Step 5: Solve for x
    x = 662,467,919.21/34,046.43
  6. Step 6: Final answer
    x = 19,457.78

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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.