Home / 33,311.99-45,990.57-20,753.75

Finding the Fourth Proportional to 33,311.99, 45,990.57 and 20,753.75

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Solution

The fourth proportional to 33,311.99, 45,990.57 and 20,753.75 is: 28,652.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,311.99 : 45,990.57 = 20,753.75 : x
  2. Step 2: Convert to fraction form
    33,311.99/45,990.57 = 20,753.75/x
  3. Step 3: Cross multiply
    33,311.99x = 45,990.57 × 20,753.75
  4. Step 4: Simplify right side
    33,311.99x = 954,476,792.14
  5. Step 5: Solve for x
    x = 954,476,792.14/33,311.99
  6. Step 6: Final answer
    x = 28,652.65

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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.