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Finding the Fourth Proportional to 36,719.58, 50,675.07 and 20,809.15

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Solution

The fourth proportional to 36,719.58, 50,675.07 and 20,809.15 is: 28,717.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,719.58 : 50,675.07 = 20,809.15 : x
  2. Step 2: Convert to fraction form
    36,719.58/50,675.07 = 20,809.15/x
  3. Step 3: Cross multiply
    36,719.58x = 50,675.07 × 20,809.15
  4. Step 4: Simplify right side
    36,719.58x = 1,054,505,252.23
  5. Step 5: Solve for x
    x = 1,054,505,252.23/36,719.58
  6. Step 6: Final answer
    x = 28,717.79

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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.