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Finding the Fourth Proportional to 35,388.31, 48,837.47 and 21,963.88

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Solution

The fourth proportional to 35,388.31, 48,837.47 and 21,963.88 is: 30,311.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,388.31 : 48,837.47 = 21,963.88 : x
  2. Step 2: Convert to fraction form
    35,388.31/48,837.47 = 21,963.88/x
  3. Step 3: Cross multiply
    35,388.31x = 48,837.47 × 21,963.88
  4. Step 4: Simplify right side
    35,388.31x = 1,072,660,330.58
  5. Step 5: Solve for x
    x = 1,072,660,330.58/35,388.31
  6. Step 6: Final answer
    x = 30,311.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.