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Finding the Fourth Proportional to 35,388.44, 48,836.41 and 20,280.77

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Solution

The fourth proportional to 35,388.44, 48,836.41 and 20,280.77 is: 27,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,388.44 : 48,836.41 = 20,280.77 : x
  2. Step 2: Convert to fraction form
    35,388.44/48,836.41 = 20,280.77/x
  3. Step 3: Cross multiply
    35,388.44x = 48,836.41 × 20,280.77
  4. Step 4: Simplify right side
    35,388.44x = 990,439,998.84
  5. Step 5: Solve for x
    x = 990,439,998.84/35,388.44
  6. Step 6: Final answer
    x = 27,987.67

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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.