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Finding the Fourth Proportional to 30,399.55, 45,599.30 and 16,899.33

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Solution

The fourth proportional to 30,399.55, 45,599.30 and 16,899.33 is: 25,348.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,399.55 : 45,599.30 = 16,899.33 : x
  2. Step 2: Convert to fraction form
    30,399.55/45,599.30 = 16,899.33/x
  3. Step 3: Cross multiply
    30,399.55x = 45,599.30 × 16,899.33
  4. Step 4: Simplify right side
    30,399.55x = 770,597,533.97
  5. Step 5: Solve for x
    x = 770,597,533.97/30,399.55
  6. Step 6: Final answer
    x = 25,348.98

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Similar ratio
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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.