Home / 31,685.37-43,729.94-18,257.19

Finding the Fourth Proportional to 31,685.37, 43,729.94 and 18,257.19

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Solution

The fourth proportional to 31,685.37, 43,729.94 and 18,257.19 is: 25,197.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,685.37 : 43,729.94 = 18,257.19 : x
  2. Step 2: Convert to fraction form
    31,685.37/43,729.94 = 18,257.19/x
  3. Step 3: Cross multiply
    31,685.37x = 43,729.94 × 18,257.19
  4. Step 4: Simplify right side
    31,685.37x = 798,385,823.27
  5. Step 5: Solve for x
    x = 798,385,823.27/31,685.37
  6. Step 6: Final answer
    x = 25,197.30

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Double scale
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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.