Home / 34,481.40-51,747.70-13,719.80

Finding the Fourth Proportional to 34,481.40, 51,747.70 and 13,719.80

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Solution

The fourth proportional to 34,481.40, 51,747.70 and 13,719.80 is: 20,589.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,481.40 : 51,747.70 = 13,719.80 : x
  2. Step 2: Convert to fraction form
    34,481.40/51,747.70 = 13,719.80/x
  3. Step 3: Cross multiply
    34,481.40x = 51,747.70 × 13,719.80
  4. Step 4: Simplify right side
    34,481.40x = 709,968,094.46
  5. Step 5: Solve for x
    x = 709,968,094.46/34,481.40
  6. Step 6: Final answer
    x = 20,589.89

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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.