Home / 31,720.07-47,576.43-8,348.33

Finding the Fourth Proportional to 31,720.07, 47,576.43 and 8,348.33

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Solution

The fourth proportional to 31,720.07, 47,576.43 and 8,348.33 is: 12,521.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,720.07 : 47,576.43 = 8,348.33 : x
  2. Step 2: Convert to fraction form
    31,720.07/47,576.43 = 8,348.33/x
  3. Step 3: Cross multiply
    31,720.07x = 47,576.43 × 8,348.33
  4. Step 4: Simplify right side
    31,720.07x = 397,183,856.80
  5. Step 5: Solve for x
    x = 397,183,856.80/31,720.07
  6. Step 6: Final answer
    x = 12,521.53

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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.