Home / 18,831.42-28,243.26-17,894.70

Finding the Fourth Proportional to 18,831.42, 28,243.26 and 17,894.70

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Solution

The fourth proportional to 18,831.42, 28,243.26 and 17,894.70 is: 26,838.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.42 : 28,243.26 = 17,894.70 : x
  2. Step 2: Convert to fraction form
    18,831.42/28,243.26 = 17,894.70/x
  3. Step 3: Cross multiply
    18,831.42x = 28,243.26 × 17,894.70
  4. Step 4: Simplify right side
    18,831.42x = 505,404,664.72
  5. Step 5: Solve for x
    x = 505,404,664.72/18,831.42
  6. Step 6: Final answer
    x = 26,838.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.