Home / 23,138.78-31,928.07-13,067.02

Finding the Fourth Proportional to 23,138.78, 31,928.07 and 13,067.02

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Solution

The fourth proportional to 23,138.78, 31,928.07 and 13,067.02 is: 18,030.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,138.78 : 31,928.07 = 13,067.02 : x
  2. Step 2: Convert to fraction form
    23,138.78/31,928.07 = 13,067.02/x
  3. Step 3: Cross multiply
    23,138.78x = 31,928.07 × 13,067.02
  4. Step 4: Simplify right side
    23,138.78x = 417,204,729.25
  5. Step 5: Solve for x
    x = 417,204,729.25/23,138.78
  6. Step 6: Final answer
    x = 18,030.54

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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.