Home / 30,504.45-45,776.12-12,974.25

Finding the Fourth Proportional to 30,504.45, 45,776.12 and 12,974.25

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Solution

The fourth proportional to 30,504.45, 45,776.12 and 12,974.25 is: 19,469.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,504.45 : 45,776.12 = 12,974.25 : x
  2. Step 2: Convert to fraction form
    30,504.45/45,776.12 = 12,974.25/x
  3. Step 3: Cross multiply
    30,504.45x = 45,776.12 × 12,974.25
  4. Step 4: Simplify right side
    30,504.45x = 593,910,760.04
  5. Step 5: Solve for x
    x = 593,910,760.04/30,504.45
  6. Step 6: Final answer
    x = 19,469.64

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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.