Home / 30,257.80-41,755.38-16,829

Finding the Fourth Proportional to 30,257.80, 41,755.38 and 16,829

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Solution

The fourth proportional to 30,257.80, 41,755.38 and 16,829 is: 23,223.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,257.80 : 41,755.38 = 16,829 : x
  2. Step 2: Convert to fraction form
    30,257.80/41,755.38 = 16,829/x
  3. Step 3: Cross multiply
    30,257.80x = 41,755.38 × 16,829
  4. Step 4: Simplify right side
    30,257.80x = 702,701,290.02
  5. Step 5: Solve for x
    x = 702,701,290.02/30,257.80
  6. Step 6: Final answer
    x = 23,223.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.