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Finding the Fourth Proportional to 28,004.14, 42,007.02 and 7,227.64

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Solution

The fourth proportional to 28,004.14, 42,007.02 and 7,227.64 is: 10,841.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,004.14 : 42,007.02 = 7,227.64 : x
  2. Step 2: Convert to fraction form
    28,004.14/42,007.02 = 7,227.64/x
  3. Step 3: Cross multiply
    28,004.14x = 42,007.02 × 7,227.64
  4. Step 4: Simplify right side
    28,004.14x = 303,611,618.03
  5. Step 5: Solve for x
    x = 303,611,618.03/28,004.14
  6. Step 6: Final answer
    x = 10,841.67

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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.