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Finding the Fourth Proportional to 30,630.96, 45,945.96 and 16,772.40

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Solution

The fourth proportional to 30,630.96, 45,945.96 and 16,772.40 is: 25,158.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,630.96 : 45,945.96 = 16,772.40 : x
  2. Step 2: Convert to fraction form
    30,630.96/45,945.96 = 16,772.40/x
  3. Step 3: Cross multiply
    30,630.96x = 45,945.96 × 16,772.40
  4. Step 4: Simplify right side
    30,630.96x = 770,624,019.50
  5. Step 5: Solve for x
    x = 770,624,019.50/30,630.96
  6. Step 6: Final answer
    x = 25,158.34

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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.