Home / 23,081.96-31,867.62-15,135.72

Finding the Fourth Proportional to 23,081.96, 31,867.62 and 15,135.72

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Solution

The fourth proportional to 23,081.96, 31,867.62 and 15,135.72 is: 20,896.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,081.96 : 31,867.62 = 15,135.72 : x
  2. Step 2: Convert to fraction form
    23,081.96/31,867.62 = 15,135.72/x
  3. Step 3: Cross multiply
    23,081.96x = 31,867.62 × 15,135.72
  4. Step 4: Simplify right side
    23,081.96x = 482,339,373.39
  5. Step 5: Solve for x
    x = 482,339,373.39/23,081.96
  6. Step 6: Final answer
    x = 20,896.81

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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.