Home / 19,831.98-27,368.12-10,879.54

Finding the Fourth Proportional to 19,831.98, 27,368.12 and 10,879.54

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Solution

The fourth proportional to 19,831.98, 27,368.12 and 10,879.54 is: 15,013.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.98 : 27,368.12 = 10,879.54 : x
  2. Step 2: Convert to fraction form
    19,831.98/27,368.12 = 10,879.54/x
  3. Step 3: Cross multiply
    19,831.98x = 27,368.12 × 10,879.54
  4. Step 4: Simplify right side
    19,831.98x = 297,752,556.26
  5. Step 5: Solve for x
    x = 297,752,556.26/19,831.98
  6. Step 6: Final answer
    x = 15,013.76

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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.