Home / 25,161.21-34,722.86-13,831.19

Finding the Fourth Proportional to 25,161.21, 34,722.86 and 13,831.19

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Solution

The fourth proportional to 25,161.21, 34,722.86 and 13,831.19 is: 19,087.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,161.21 : 34,722.86 = 13,831.19 : x
  2. Step 2: Convert to fraction form
    25,161.21/34,722.86 = 13,831.19/x
  3. Step 3: Cross multiply
    25,161.21x = 34,722.86 × 13,831.19
  4. Step 4: Simplify right side
    25,161.21x = 480,258,474.00
  5. Step 5: Solve for x
    x = 480,258,474.00/25,161.21
  6. Step 6: Final answer
    x = 19,087.26

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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.