Home / 26,794.70-36,934.07-21,120.24

Finding the Fourth Proportional to 26,794.70, 36,934.07 and 21,120.24

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Solution

The fourth proportional to 26,794.70, 36,934.07 and 21,120.24 is: 29,112.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,794.70 : 36,934.07 = 21,120.24 : x
  2. Step 2: Convert to fraction form
    26,794.70/36,934.07 = 21,120.24/x
  3. Step 3: Cross multiply
    26,794.70x = 36,934.07 × 21,120.24
  4. Step 4: Simplify right side
    26,794.70x = 780,056,316.98
  5. Step 5: Solve for x
    x = 780,056,316.98/26,794.70
  6. Step 6: Final answer
    x = 29,112.34

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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.