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Finding the Fourth Proportional to 28,441.46, 42,662.19 and 7,667.06

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Solution

The fourth proportional to 28,441.46, 42,662.19 and 7,667.06 is: 11,500.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,441.46 : 42,662.19 = 7,667.06 : x
  2. Step 2: Convert to fraction form
    28,441.46/42,662.19 = 7,667.06/x
  3. Step 3: Cross multiply
    28,441.46x = 42,662.19 × 7,667.06
  4. Step 4: Simplify right side
    28,441.46x = 327,093,570.46
  5. Step 5: Solve for x
    x = 327,093,570.46/28,441.46
  6. Step 6: Final answer
    x = 11,500.59

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Half scale
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Double scale
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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.