Home / 31,826.70-47,745.90-10,480.59

Finding the Fourth Proportional to 31,826.70, 47,745.90 and 10,480.59

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Solution

The fourth proportional to 31,826.70, 47,745.90 and 10,480.59 is: 15,722.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,826.70 : 47,745.90 = 10,480.59 : x
  2. Step 2: Convert to fraction form
    31,826.70/47,745.90 = 10,480.59/x
  3. Step 3: Cross multiply
    31,826.70x = 47,745.90 × 10,480.59
  4. Step 4: Simplify right side
    31,826.70x = 500,405,202.08
  5. Step 5: Solve for x
    x = 500,405,202.08/31,826.70
  6. Step 6: Final answer
    x = 15,722.81

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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.