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Finding the Fourth Proportional to 35,395.71, 48,845.10 and 20,085.05

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Solution

The fourth proportional to 35,395.71, 48,845.10 and 20,085.05 is: 27,716.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,395.71 : 48,845.10 = 20,085.05 : x
  2. Step 2: Convert to fraction form
    35,395.71/48,845.10 = 20,085.05/x
  3. Step 3: Cross multiply
    35,395.71x = 48,845.10 × 20,085.05
  4. Step 4: Simplify right side
    35,395.71x = 981,056,031.53
  5. Step 5: Solve for x
    x = 981,056,031.53/35,395.71
  6. Step 6: Final answer
    x = 27,716.81

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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.