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Finding the Fourth Proportional to 28,820.34, 43,230.42 and 6,932.34

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Solution

The fourth proportional to 28,820.34, 43,230.42 and 6,932.34 is: 10,398.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.34 : 43,230.42 = 6,932.34 : x
  2. Step 2: Convert to fraction form
    28,820.34/43,230.42 = 6,932.34/x
  3. Step 3: Cross multiply
    28,820.34x = 43,230.42 × 6,932.34
  4. Step 4: Simplify right side
    28,820.34x = 299,687,969.78
  5. Step 5: Solve for x
    x = 299,687,969.78/28,820.34
  6. Step 6: Final answer
    x = 10,398.49

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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.