Home / 35,245.87-48,633.07-20,136.45

Finding the Fourth Proportional to 35,245.87, 48,633.07 and 20,136.45

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Solution

The fourth proportional to 35,245.87, 48,633.07 and 20,136.45 is: 27,784.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,245.87 : 48,633.07 = 20,136.45 : x
  2. Step 2: Convert to fraction form
    35,245.87/48,633.07 = 20,136.45/x
  3. Step 3: Cross multiply
    35,245.87x = 48,633.07 × 20,136.45
  4. Step 4: Simplify right side
    35,245.87x = 979,297,382.40
  5. Step 5: Solve for x
    x = 979,297,382.40/35,245.87
  6. Step 6: Final answer
    x = 27,784.74

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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.