Home / 23,081.93-31,831.93-15,128.54

Finding the Fourth Proportional to 23,081.93, 31,831.93 and 15,128.54

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Solution

The fourth proportional to 23,081.93, 31,831.93 and 15,128.54 is: 20,863.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,081.93 : 31,831.93 = 15,128.54 : x
  2. Step 2: Convert to fraction form
    23,081.93/31,831.93 = 15,128.54/x
  3. Step 3: Cross multiply
    23,081.93x = 31,831.93 × 15,128.54
  4. Step 4: Simplify right side
    23,081.93x = 481,570,699.36
  5. Step 5: Solve for x
    x = 481,570,699.36/23,081.93
  6. Step 6: Final answer
    x = 20,863.53

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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.