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Finding the Fourth Proportional to 31,750.41, 43,817.04 and 18,321.42

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Solution

The fourth proportional to 31,750.41, 43,817.04 and 18,321.42 is: 25,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,750.41 : 43,817.04 = 18,321.42 : x
  2. Step 2: Convert to fraction form
    31,750.41/43,817.04 = 18,321.42/x
  3. Step 3: Cross multiply
    31,750.41x = 43,817.04 × 18,321.42
  4. Step 4: Simplify right side
    31,750.41x = 802,790,393.00
  5. Step 5: Solve for x
    x = 802,790,393.00/31,750.41
  6. Step 6: Final answer
    x = 25,284.41

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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.