Home / 23,172.78-34,805.70-13,831.04

Finding the Fourth Proportional to 23,172.78, 34,805.70 and 13,831.04

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Solution

The fourth proportional to 23,172.78, 34,805.70 and 13,831.04 is: 20,774.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,172.78 : 34,805.70 = 13,831.04 : x
  2. Step 2: Convert to fraction form
    23,172.78/34,805.70 = 13,831.04/x
  3. Step 3: Cross multiply
    23,172.78x = 34,805.70 × 13,831.04
  4. Step 4: Simplify right side
    23,172.78x = 481,399,028.93
  5. Step 5: Solve for x
    x = 481,399,028.93/23,172.78
  6. Step 6: Final answer
    x = 20,774.33

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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.