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Finding the Fourth Proportional to 35,309.82, 48,750.36 and 21,895.31

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Solution

The fourth proportional to 35,309.82, 48,750.36 and 21,895.31 is: 30,229.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,309.82 : 48,750.36 = 21,895.31 : x
  2. Step 2: Convert to fraction form
    35,309.82/48,750.36 = 21,895.31/x
  3. Step 3: Cross multiply
    35,309.82x = 48,750.36 × 21,895.31
  4. Step 4: Simplify right side
    35,309.82x = 1,067,404,284.58
  5. Step 5: Solve for x
    x = 1,067,404,284.58/35,309.82
  6. Step 6: Final answer
    x = 30,229.67

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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.