Home / 31,860.54-47,792.97-8,486.22

Finding the Fourth Proportional to 31,860.54, 47,792.97 and 8,486.22

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Solution

The fourth proportional to 31,860.54, 47,792.97 and 8,486.22 is: 12,729.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,860.54 : 47,792.97 = 8,486.22 : x
  2. Step 2: Convert to fraction form
    31,860.54/47,792.97 = 8,486.22/x
  3. Step 3: Cross multiply
    31,860.54x = 47,792.97 × 8,486.22
  4. Step 4: Simplify right side
    31,860.54x = 405,581,657.87
  5. Step 5: Solve for x
    x = 405,581,657.87/31,860.54
  6. Step 6: Final answer
    x = 12,729.91

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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.