Home / 30,604.49-45,901.44-8,115.32

Finding the Fourth Proportional to 30,604.49, 45,901.44 and 8,115.32

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Solution

The fourth proportional to 30,604.49, 45,901.44 and 8,115.32 is: 12,171.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,604.49 : 45,901.44 = 8,115.32 : x
  2. Step 2: Convert to fraction form
    30,604.49/45,901.44 = 8,115.32/x
  3. Step 3: Cross multiply
    30,604.49x = 45,901.44 × 8,115.32
  4. Step 4: Simplify right side
    30,604.49x = 372,504,644.55
  5. Step 5: Solve for x
    x = 372,504,644.55/30,604.49
  6. Step 6: Final answer
    x = 12,171.57

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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.