Home / 31,723.48-43,770.30-19,792.60

Finding the Fourth Proportional to 31,723.48, 43,770.30 and 19,792.60

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Solution

The fourth proportional to 31,723.48, 43,770.30 and 19,792.60 is: 27,308.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,723.48 : 43,770.30 = 19,792.60 : x
  2. Step 2: Convert to fraction form
    31,723.48/43,770.30 = 19,792.60/x
  3. Step 3: Cross multiply
    31,723.48x = 43,770.30 × 19,792.60
  4. Step 4: Simplify right side
    31,723.48x = 866,328,039.78
  5. Step 5: Solve for x
    x = 866,328,039.78/31,723.48
  6. Step 6: Final answer
    x = 27,308.73

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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.