Home / 30,231.90-41,722.61-16,805.75

Finding the Fourth Proportional to 30,231.90, 41,722.61 and 16,805.75

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Solution

The fourth proportional to 30,231.90, 41,722.61 and 16,805.75 is: 23,193.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,231.90 : 41,722.61 = 16,805.75 : x
  2. Step 2: Convert to fraction form
    30,231.90/41,722.61 = 16,805.75/x
  3. Step 3: Cross multiply
    30,231.90x = 41,722.61 × 16,805.75
  4. Step 4: Simplify right side
    30,231.90x = 701,179,753.01
  5. Step 5: Solve for x
    x = 701,179,753.01/30,231.90
  6. Step 6: Final answer
    x = 23,193.37

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1.5x scale

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.