Home / 35,396.55-48,841.64-20,286.30

Finding the Fourth Proportional to 35,396.55, 48,841.64 and 20,286.30

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Solution

The fourth proportional to 35,396.55, 48,841.64 and 20,286.30 is: 27,991.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,396.55 : 48,841.64 = 20,286.30 : x
  2. Step 2: Convert to fraction form
    35,396.55/48,841.64 = 20,286.30/x
  3. Step 3: Cross multiply
    35,396.55x = 48,841.64 × 20,286.30
  4. Step 4: Simplify right side
    35,396.55x = 990,815,815.89
  5. Step 5: Solve for x
    x = 990,815,815.89/35,396.55
  6. Step 6: Final answer
    x = 27,991.88

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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.