Home / 30,219.54-45,334.17-12,694.38

Finding the Fourth Proportional to 30,219.54, 45,334.17 and 12,694.38

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Solution

The fourth proportional to 30,219.54, 45,334.17 and 12,694.38 is: 19,043.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.54 : 45,334.17 = 12,694.38 : x
  2. Step 2: Convert to fraction form
    30,219.54/45,334.17 = 12,694.38/x
  3. Step 3: Cross multiply
    30,219.54x = 45,334.17 × 12,694.38
  4. Step 4: Simplify right side
    30,219.54x = 575,489,180.96
  5. Step 5: Solve for x
    x = 575,489,180.96/30,219.54
  6. Step 6: Final answer
    x = 19,043.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.