Home / 34,610.04-51,910.20-12,420.36

Finding the Fourth Proportional to 34,610.04, 51,910.20 and 12,420.36

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Solution

The fourth proportional to 34,610.04, 51,910.20 and 12,420.36 is: 18,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,610.04 : 51,910.20 = 12,420.36 : x
  2. Step 2: Convert to fraction form
    34,610.04/51,910.20 = 12,420.36/x
  3. Step 3: Cross multiply
    34,610.04x = 51,910.20 × 12,420.36
  4. Step 4: Simplify right side
    34,610.04x = 644,743,371.67
  5. Step 5: Solve for x
    x = 644,743,371.67/34,610.04
  6. Step 6: Final answer
    x = 18,628.80

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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.