Home / 26,619.36-39,936.60-13,469.28

Finding the Fourth Proportional to 26,619.36, 39,936.60 and 13,469.28

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Solution

The fourth proportional to 26,619.36, 39,936.60 and 13,469.28 is: 20,207.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,619.36 : 39,936.60 = 13,469.28 : x
  2. Step 2: Convert to fraction form
    26,619.36/39,936.60 = 13,469.28/x
  3. Step 3: Cross multiply
    26,619.36x = 39,936.60 × 13,469.28
  4. Step 4: Simplify right side
    26,619.36x = 537,917,247.65
  5. Step 5: Solve for x
    x = 537,917,247.65/26,619.36
  6. Step 6: Final answer
    x = 20,207.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.