Home / 31,603.26-43,611.72-18,174.21

Finding the Fourth Proportional to 31,603.26, 43,611.72 and 18,174.21

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Solution

The fourth proportional to 31,603.26, 43,611.72 and 18,174.21 is: 25,079.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,603.26 : 43,611.72 = 18,174.21 : x
  2. Step 2: Convert to fraction form
    31,603.26/43,611.72 = 18,174.21/x
  3. Step 3: Cross multiply
    31,603.26x = 43,611.72 × 18,174.21
  4. Step 4: Simplify right side
    31,603.26x = 792,608,557.74
  5. Step 5: Solve for x
    x = 792,608,557.74/31,603.26
  6. Step 6: Final answer
    x = 25,079.96

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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.