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Finding the Fourth Proportional to 35,805.40, 49,410.82 and 19,889.44

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Solution

The fourth proportional to 35,805.40, 49,410.82 and 19,889.44 is: 27,447.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,805.40 : 49,410.82 = 19,889.44 : x
  2. Step 2: Convert to fraction form
    35,805.40/49,410.82 = 19,889.44/x
  3. Step 3: Cross multiply
    35,805.40x = 49,410.82 × 19,889.44
  4. Step 4: Simplify right side
    35,805.40x = 982,753,539.74
  5. Step 5: Solve for x
    x = 982,753,539.74/35,805.40
  6. Step 6: Final answer
    x = 27,447.08

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1.5x scale

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.