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Finding the Fourth Proportional to 20,630.73, 30,946.10 and 7,483.11

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Solution

The fourth proportional to 20,630.73, 30,946.10 and 7,483.11 is: 11,224.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630.73 : 30,946.10 = 7,483.11 : x
  2. Step 2: Convert to fraction form
    20,630.73/30,946.10 = 7,483.11/x
  3. Step 3: Cross multiply
    20,630.73x = 30,946.10 × 7,483.11
  4. Step 4: Simplify right side
    20,630.73x = 231,573,032.96
  5. Step 5: Solve for x
    x = 231,573,032.96/20,630.73
  6. Step 6: Final answer
    x = 11,224.67

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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.