Home / 30,211.08-41,690.43-16,782

Finding the Fourth Proportional to 30,211.08, 41,690.43 and 16,782

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Solution

The fourth proportional to 30,211.08, 41,690.43 and 16,782 is: 23,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.08 : 41,690.43 = 16,782 : x
  2. Step 2: Convert to fraction form
    30,211.08/41,690.43 = 16,782/x
  3. Step 3: Cross multiply
    30,211.08x = 41,690.43 × 16,782
  4. Step 4: Simplify right side
    30,211.08x = 699,648,796.26
  5. Step 5: Solve for x
    x = 699,648,796.26/30,211.08
  6. Step 6: Final answer
    x = 23,158.68

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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.