Home / 19,640.88-27,103.32-11,257.92

Finding the Fourth Proportional to 19,640.88, 27,103.32 and 11,257.92

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Solution

The fourth proportional to 19,640.88, 27,103.32 and 11,257.92 is: 15,535.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.88 : 27,103.32 = 11,257.92 : x
  2. Step 2: Convert to fraction form
    19,640.88/27,103.32 = 11,257.92/x
  3. Step 3: Cross multiply
    19,640.88x = 27,103.32 × 11,257.92
  4. Step 4: Simplify right side
    19,640.88x = 305,127,008.29
  5. Step 5: Solve for x
    x = 305,127,008.29/19,640.88
  6. Step 6: Final answer
    x = 15,535.30

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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.