Home / 31,704.86-47,522.97-20,619.51

Finding the Fourth Proportional to 31,704.86, 47,522.97 and 20,619.51

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Solution

The fourth proportional to 31,704.86, 47,522.97 and 20,619.51 is: 30,906.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,704.86 : 47,522.97 = 20,619.51 : x
  2. Step 2: Convert to fraction form
    31,704.86/47,522.97 = 20,619.51/x
  3. Step 3: Cross multiply
    31,704.86x = 47,522.97 × 20,619.51
  4. Step 4: Simplify right side
    31,704.86x = 979,900,176.93
  5. Step 5: Solve for x
    x = 979,900,176.93/31,704.86
  6. Step 6: Final answer
    x = 30,906.94

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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.