Home / 31,745.81-43,813.67-19,650.17

Finding the Fourth Proportional to 31,745.81, 43,813.67 and 19,650.17

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Solution

The fourth proportional to 31,745.81, 43,813.67 and 19,650.17 is: 27,119.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,745.81 : 43,813.67 = 19,650.17 : x
  2. Step 2: Convert to fraction form
    31,745.81/43,813.67 = 19,650.17/x
  3. Step 3: Cross multiply
    31,745.81x = 43,813.67 × 19,650.17
  4. Step 4: Simplify right side
    31,745.81x = 860,946,063.82
  5. Step 5: Solve for x
    x = 860,946,063.82/31,745.81
  6. Step 6: Final answer
    x = 27,119.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.