Home / 19,738.80-27,236.52-11,781.36

Finding the Fourth Proportional to 19,738.80, 27,236.52 and 11,781.36

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Solution

The fourth proportional to 19,738.80, 27,236.52 and 11,781.36 is: 16,256.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,738.80 : 27,236.52 = 11,781.36 : x
  2. Step 2: Convert to fraction form
    19,738.80/27,236.52 = 11,781.36/x
  3. Step 3: Cross multiply
    19,738.80x = 27,236.52 × 11,781.36
  4. Step 4: Simplify right side
    19,738.80x = 320,883,247.27
  5. Step 5: Solve for x
    x = 320,883,247.27/19,738.80
  6. Step 6: Final answer
    x = 16,256.47

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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.