Home / 31,467.36-47,201.16-12,747.75

Finding the Fourth Proportional to 31,467.36, 47,201.16 and 12,747.75

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Solution

The fourth proportional to 31,467.36, 47,201.16 and 12,747.75 is: 19,121.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,467.36 : 47,201.16 = 12,747.75 : x
  2. Step 2: Convert to fraction form
    31,467.36/47,201.16 = 12,747.75/x
  3. Step 3: Cross multiply
    31,467.36x = 47,201.16 × 12,747.75
  4. Step 4: Simplify right side
    31,467.36x = 601,708,303.58
  5. Step 5: Solve for x
    x = 601,708,303.58/31,467.36
  6. Step 6: Final answer
    x = 19,121.67

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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.