Home / 31,683.60-43,724.40-18,253.80

Finding the Fourth Proportional to 31,683.60, 43,724.40 and 18,253.80

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Solution

The fourth proportional to 31,683.60, 43,724.40 and 18,253.80 is: 25,190.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,683.60 : 43,724.40 = 18,253.80 : x
  2. Step 2: Convert to fraction form
    31,683.60/43,724.40 = 18,253.80/x
  3. Step 3: Cross multiply
    31,683.60x = 43,724.40 × 18,253.80
  4. Step 4: Simplify right side
    31,683.60x = 798,136,452.72
  5. Step 5: Solve for x
    x = 798,136,452.72/31,683.60
  6. Step 6: Final answer
    x = 25,190.84

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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.