Home / 31,914.54-47,871.81-12,195.09

Finding the Fourth Proportional to 31,914.54, 47,871.81 and 12,195.09

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Solution

The fourth proportional to 31,914.54, 47,871.81 and 12,195.09 is: 18,292.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,914.54 : 47,871.81 = 12,195.09 : x
  2. Step 2: Convert to fraction form
    31,914.54/47,871.81 = 12,195.09/x
  3. Step 3: Cross multiply
    31,914.54x = 47,871.81 × 12,195.09
  4. Step 4: Simplify right side
    31,914.54x = 583,801,031.41
  5. Step 5: Solve for x
    x = 583,801,031.41/31,914.54
  6. Step 6: Final answer
    x = 18,292.64

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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.