Home / 19,831.36-27,357.73-11,443

Finding the Fourth Proportional to 19,831.36, 27,357.73 and 11,443

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Solution

The fourth proportional to 19,831.36, 27,357.73 and 11,443 is: 15,785.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.36 : 27,357.73 = 11,443 : x
  2. Step 2: Convert to fraction form
    19,831.36/27,357.73 = 11,443/x
  3. Step 3: Cross multiply
    19,831.36x = 27,357.73 × 11,443
  4. Step 4: Simplify right side
    19,831.36x = 313,054,504.39
  5. Step 5: Solve for x
    x = 313,054,504.39/19,831.36
  6. Step 6: Final answer
    x = 15,785.83

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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.