Home / 34,278.30-51,404.40-12,087.54

Finding the Fourth Proportional to 34,278.30, 51,404.40 and 12,087.54

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Solution

The fourth proportional to 34,278.30, 51,404.40 and 12,087.54 is: 18,126.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,278.30 : 51,404.40 = 12,087.54 : x
  2. Step 2: Convert to fraction form
    34,278.30/51,404.40 = 12,087.54/x
  3. Step 3: Cross multiply
    34,278.30x = 51,404.40 × 12,087.54
  4. Step 4: Simplify right side
    34,278.30x = 621,352,741.18
  5. Step 5: Solve for x
    x = 621,352,741.18/34,278.30
  6. Step 6: Final answer
    x = 18,126.71

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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.