Home / 20,736.32-28,618.38-11,786.00

Finding the Fourth Proportional to 20,736.32, 28,618.38 and 11,786.00

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Solution

The fourth proportional to 20,736.32, 28,618.38 and 11,786.00 is: 16,265.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.32 : 28,618.38 = 11,786.00 : x
  2. Step 2: Convert to fraction form
    20,736.32/28,618.38 = 11,786.00/x
  3. Step 3: Cross multiply
    20,736.32x = 28,618.38 × 11,786.00
  4. Step 4: Simplify right side
    20,736.32x = 337,296,083.59
  5. Step 5: Solve for x
    x = 337,296,083.59/20,736.32
  6. Step 6: Final answer
    x = 16,265.96

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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.