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Finding the Fourth Proportional to 30,010.72, 45,018.38 and 8,949.16

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Solution

The fourth proportional to 30,010.72, 45,018.38 and 8,949.16 is: 13,424.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,010.72 : 45,018.38 = 8,949.16 : x
  2. Step 2: Convert to fraction form
    30,010.72/45,018.38 = 8,949.16/x
  3. Step 3: Cross multiply
    30,010.72x = 45,018.38 × 8,949.16
  4. Step 4: Simplify right side
    30,010.72x = 402,876,685.56
  5. Step 5: Solve for x
    x = 402,876,685.56/30,010.72
  6. Step 6: Final answer
    x = 13,424.43

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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.