Home / 19,640.32-27,103.36-11,256.32

Finding the Fourth Proportional to 19,640.32, 27,103.36 and 11,256.32

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Solution

The fourth proportional to 19,640.32, 27,103.36 and 11,256.32 is: 15,533.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.32 : 27,103.36 = 11,256.32 : x
  2. Step 2: Convert to fraction form
    19,640.32/27,103.36 = 11,256.32/x
  3. Step 3: Cross multiply
    19,640.32x = 27,103.36 × 11,256.32
  4. Step 4: Simplify right side
    19,640.32x = 305,084,093.24
  5. Step 5: Solve for x
    x = 305,084,093.24/19,640.32
  6. Step 6: Final answer
    x = 15,533.56

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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.