Home / 34,164.78-51,270.30-11,978.34

Finding the Fourth Proportional to 34,164.78, 51,270.30 and 11,978.34

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Solution

The fourth proportional to 34,164.78, 51,270.30 and 11,978.34 is: 17,975.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,164.78 : 51,270.30 = 11,978.34 : x
  2. Step 2: Convert to fraction form
    34,164.78/51,270.30 = 11,978.34/x
  3. Step 3: Cross multiply
    34,164.78x = 51,270.30 × 11,978.34
  4. Step 4: Simplify right side
    34,164.78x = 614,133,085.30
  5. Step 5: Solve for x
    x = 614,133,085.30/34,164.78
  6. Step 6: Final answer
    x = 17,975.62

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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.