Home / 35,138.76-48,467.62-21,520.44

Finding the Fourth Proportional to 35,138.76, 48,467.62 and 21,520.44

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Solution

The fourth proportional to 35,138.76, 48,467.62 and 21,520.44 is: 29,683.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,138.76 : 48,467.62 = 21,520.44 : x
  2. Step 2: Convert to fraction form
    35,138.76/48,467.62 = 21,520.44/x
  3. Step 3: Cross multiply
    35,138.76x = 48,467.62 × 21,520.44
  4. Step 4: Simplify right side
    35,138.76x = 1,043,044,508.15
  5. Step 5: Solve for x
    x = 1,043,044,508.15/35,138.76
  6. Step 6: Final answer
    x = 29,683.59

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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.