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Finding the Fourth Proportional to 35,786.95, 49,388.21 and 19,871.51

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Solution

The fourth proportional to 35,786.95, 49,388.21 and 19,871.51 is: 27,423.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,786.95 : 49,388.21 = 19,871.51 : x
  2. Step 2: Convert to fraction form
    35,786.95/49,388.21 = 19,871.51/x
  3. Step 3: Cross multiply
    35,786.95x = 49,388.21 × 19,871.51
  4. Step 4: Simplify right side
    35,786.95x = 981,418,358.58
  5. Step 5: Solve for x
    x = 981,418,358.58/35,786.95
  6. Step 6: Final answer
    x = 27,423.92

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