Home / 31,683.21-43,733.76-18,259.83

Finding the Fourth Proportional to 31,683.21, 43,733.76 and 18,259.83

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Solution

The fourth proportional to 31,683.21, 43,733.76 and 18,259.83 is: 25,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,683.21 : 43,733.76 = 18,259.83 : x
  2. Step 2: Convert to fraction form
    31,683.21/43,733.76 = 18,259.83/x
  3. Step 3: Cross multiply
    31,683.21x = 43,733.76 × 18,259.83
  4. Step 4: Simplify right side
    31,683.21x = 798,570,804.19
  5. Step 5: Solve for x
    x = 798,570,804.19/31,683.21
  6. Step 6: Final answer
    x = 25,204.86

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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.