Home / 31,843.33-47,771.07-12,120.23

Finding the Fourth Proportional to 31,843.33, 47,771.07 and 12,120.23

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Solution

The fourth proportional to 31,843.33, 47,771.07 and 12,120.23 is: 18,182.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,843.33 : 47,771.07 = 12,120.23 : x
  2. Step 2: Convert to fraction form
    31,843.33/47,771.07 = 12,120.23/x
  3. Step 3: Cross multiply
    31,843.33x = 47,771.07 × 12,120.23
  4. Step 4: Simplify right side
    31,843.33x = 578,996,429.72
  5. Step 5: Solve for x
    x = 578,996,429.72/31,843.33
  6. Step 6: Final answer
    x = 18,182.66

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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.