Home / 19,831.49-27,367.82-10,879.45

Finding the Fourth Proportional to 19,831.49, 27,367.82 and 10,879.45

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Solution

The fourth proportional to 19,831.49, 27,367.82 and 10,879.45 is: 15,013.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.49 : 27,367.82 = 10,879.45 : x
  2. Step 2: Convert to fraction form
    19,831.49/27,367.82 = 10,879.45/x
  3. Step 3: Cross multiply
    19,831.49x = 27,367.82 × 10,879.45
  4. Step 4: Simplify right side
    19,831.49x = 297,746,829.30
  5. Step 5: Solve for x
    x = 297,746,829.30/19,831.49
  6. Step 6: Final answer
    x = 15,013.84

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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.