Home / 31,683.09-43,733.60-18,259.70

Finding the Fourth Proportional to 31,683.09, 43,733.60 and 18,259.70

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Solution

The fourth proportional to 31,683.09, 43,733.60 and 18,259.70 is: 25,204.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,683.09 : 43,733.60 = 18,259.70 : x
  2. Step 2: Convert to fraction form
    31,683.09/43,733.60 = 18,259.70/x
  3. Step 3: Cross multiply
    31,683.09x = 43,733.60 × 18,259.70
  4. Step 4: Simplify right side
    31,683.09x = 798,562,105.95
  5. Step 5: Solve for x
    x = 798,562,105.95/31,683.09
  6. Step 6: Final answer
    x = 25,204.68

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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.