Home / 20,297.08-27,991.83-12,744.12

Finding the Fourth Proportional to 20,297.08, 27,991.83 and 12,744.12

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Solution

The fourth proportional to 20,297.08, 27,991.83 and 12,744.12 is: 17,575.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,297.08 : 27,991.83 = 12,744.12 : x
  2. Step 2: Convert to fraction form
    20,297.08/27,991.83 = 12,744.12/x
  3. Step 3: Cross multiply
    20,297.08x = 27,991.83 × 12,744.12
  4. Step 4: Simplify right side
    20,297.08x = 356,731,164.16
  5. Step 5: Solve for x
    x = 356,731,164.16/20,297.08
  6. Step 6: Final answer
    x = 17,575.49

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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.