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Finding the Fourth Proportional to 36,739, 50,699.70 and 19,971.88

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Solution

The fourth proportional to 36,739, 50,699.70 and 19,971.88 is: 27,561.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,739 : 50,699.70 = 19,971.88 : x
  2. Step 2: Convert to fraction form
    36,739/50,699.70 = 19,971.88/x
  3. Step 3: Cross multiply
    36,739x = 50,699.70 × 19,971.88
  4. Step 4: Simplify right side
    36,739x = 1,012,568,324.44
  5. Step 5: Solve for x
    x = 1,012,568,324.44/36,739
  6. Step 6: Final answer
    x = 27,561.13

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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.