Home / 34,505.31-51,768.89-12,318.19

Finding the Fourth Proportional to 34,505.31, 51,768.89 and 12,318.19

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Solution

The fourth proportional to 34,505.31, 51,768.89 and 12,318.19 is: 18,481.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,505.31 : 51,768.89 = 12,318.19 : x
  2. Step 2: Convert to fraction form
    34,505.31/51,768.89 = 12,318.19/x
  3. Step 3: Cross multiply
    34,505.31x = 51,768.89 × 12,318.19
  4. Step 4: Simplify right side
    34,505.31x = 637,699,023.11
  5. Step 5: Solve for x
    x = 637,699,023.11/34,505.31
  6. Step 6: Final answer
    x = 18,481.19

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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.