Home / 31,847.33-47,771.42-12,126.97

Finding the Fourth Proportional to 31,847.33, 47,771.42 and 12,126.97

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Solution

The fourth proportional to 31,847.33, 47,771.42 and 12,126.97 is: 18,190.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,847.33 : 47,771.42 = 12,126.97 : x
  2. Step 2: Convert to fraction form
    31,847.33/47,771.42 = 12,126.97/x
  3. Step 3: Cross multiply
    31,847.33x = 47,771.42 × 12,126.97
  4. Step 4: Simplify right side
    31,847.33x = 579,322,577.20
  5. Step 5: Solve for x
    x = 579,322,577.20/31,847.33
  6. Step 6: Final answer
    x = 18,190.62

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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.