Home / 31,465.75-47,198.41-12,745.51

Finding the Fourth Proportional to 31,465.75, 47,198.41 and 12,745.51

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Solution

The fourth proportional to 31,465.75, 47,198.41 and 12,745.51 is: 19,118.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,465.75 : 47,198.41 = 12,745.51 : x
  2. Step 2: Convert to fraction form
    31,465.75/47,198.41 = 12,745.51/x
  3. Step 3: Cross multiply
    31,465.75x = 47,198.41 × 12,745.51
  4. Step 4: Simplify right side
    31,465.75x = 601,567,806.64
  5. Step 5: Solve for x
    x = 601,567,806.64/31,465.75
  6. Step 6: Final answer
    x = 19,118.18

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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.