Home / 34,057.12-51,092.16-13,279.36

Finding the Fourth Proportional to 34,057.12, 51,092.16 and 13,279.36

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Solution

The fourth proportional to 34,057.12, 51,092.16 and 13,279.36 is: 19,921.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,057.12 : 51,092.16 = 13,279.36 : x
  2. Step 2: Convert to fraction form
    34,057.12/51,092.16 = 13,279.36/x
  3. Step 3: Cross multiply
    34,057.12x = 51,092.16 × 13,279.36
  4. Step 4: Simplify right side
    34,057.12x = 678,471,185.82
  5. Step 5: Solve for x
    x = 678,471,185.82/34,057.12
  6. Step 6: Final answer
    x = 19,921.57

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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.