Home / 34,215.40-51,323.10-19,418.60

Finding the Fourth Proportional to 34,215.40, 51,323.10 and 19,418.60

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Solution

The fourth proportional to 34,215.40, 51,323.10 and 19,418.60 is: 29,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,215.40 : 51,323.10 = 19,418.60 : x
  2. Step 2: Convert to fraction form
    34,215.40/51,323.10 = 19,418.60/x
  3. Step 3: Cross multiply
    34,215.40x = 51,323.10 × 19,418.60
  4. Step 4: Simplify right side
    34,215.40x = 996,622,749.66
  5. Step 5: Solve for x
    x = 996,622,749.66/34,215.40
  6. Step 6: Final answer
    x = 29,127.90

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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.