Home / 30,809.52-42,517.58-18,234.27

Finding the Fourth Proportional to 30,809.52, 42,517.58 and 18,234.27

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Solution

The fourth proportional to 30,809.52, 42,517.58 and 18,234.27 is: 25,163.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,809.52 : 42,517.58 = 18,234.27 : x
  2. Step 2: Convert to fraction form
    30,809.52/42,517.58 = 18,234.27/x
  3. Step 3: Cross multiply
    30,809.52x = 42,517.58 × 18,234.27
  4. Step 4: Simplify right side
    30,809.52x = 775,276,942.30
  5. Step 5: Solve for x
    x = 775,276,942.30/30,809.52
  6. Step 6: Final answer
    x = 25,163.55

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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.