Home / 18,831.79-25,922.63-16,278.37

Finding the Fourth Proportional to 18,831.79, 25,922.63 and 16,278.37

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Solution

The fourth proportional to 18,831.79, 25,922.63 and 16,278.37 is: 22,407.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.79 : 25,922.63 = 16,278.37 : x
  2. Step 2: Convert to fraction form
    18,831.79/25,922.63 = 16,278.37/x
  3. Step 3: Cross multiply
    18,831.79x = 25,922.63 × 16,278.37
  4. Step 4: Simplify right side
    18,831.79x = 421,978,138.40
  5. Step 5: Solve for x
    x = 421,978,138.40/18,831.79
  6. Step 6: Final answer
    x = 22,407.75

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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.