Home / 30,179.12-41,647.46-18,250.43

Finding the Fourth Proportional to 30,179.12, 41,647.46 and 18,250.43

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Solution

The fourth proportional to 30,179.12, 41,647.46 and 18,250.43 is: 25,185.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,179.12 : 41,647.46 = 18,250.43 : x
  2. Step 2: Convert to fraction form
    30,179.12/41,647.46 = 18,250.43/x
  3. Step 3: Cross multiply
    30,179.12x = 41,647.46 × 18,250.43
  4. Step 4: Simplify right side
    30,179.12x = 760,083,753.92
  5. Step 5: Solve for x
    x = 760,083,753.92/30,179.12
  6. Step 6: Final answer
    x = 25,185.75

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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.