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Finding the Fourth Proportional to 28,820, 43,230 and 6,932

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Solution

The fourth proportional to 28,820, 43,230 and 6,932 is: 10,398

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820 : 43,230 = 6,932 : x
  2. Step 2: Convert to fraction form
    28,820/43,230 = 6,932/x
  3. Step 3: Cross multiply
    28,820x = 43,230 × 6,932
  4. Step 4: Simplify right side
    28,820x = 299,670,360
  5. Step 5: Solve for x
    x = 299,670,360/28,820
  6. Step 6: Final answer
    x = 10,398

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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.