Home / 35,245.82-48,639-20,143.10

Finding the Fourth Proportional to 35,245.82, 48,639 and 20,143.10

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Solution

The fourth proportional to 35,245.82, 48,639 and 20,143.10 is: 27,797.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,245.82 : 48,639 = 20,143.10 : x
  2. Step 2: Convert to fraction form
    35,245.82/48,639 = 20,143.10/x
  3. Step 3: Cross multiply
    35,245.82x = 48,639 × 20,143.10
  4. Step 4: Simplify right side
    35,245.82x = 979,740,240.90
  5. Step 5: Solve for x
    x = 979,740,240.90/35,245.82
  6. Step 6: Final answer
    x = 27,797.35

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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.