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Finding the Fourth Proportional to 28,045.32, 42,063.12 and 7,268.82

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Solution

The fourth proportional to 28,045.32, 42,063.12 and 7,268.82 is: 10,901.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.32 : 42,063.12 = 7,268.82 : x
  2. Step 2: Convert to fraction form
    28,045.32/42,063.12 = 7,268.82/x
  3. Step 3: Cross multiply
    28,045.32x = 42,063.12 × 7,268.82
  4. Step 4: Simplify right side
    28,045.32x = 305,749,247.92
  5. Step 5: Solve for x
    x = 305,749,247.92/28,045.32
  6. Step 6: Final answer
    x = 10,901.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.