Home / 31,559.44-43,539.78-18,125.80

Finding the Fourth Proportional to 31,559.44, 43,539.78 and 18,125.80

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Solution

The fourth proportional to 31,559.44, 43,539.78 and 18,125.80 is: 25,006.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,559.44 : 43,539.78 = 18,125.80 : x
  2. Step 2: Convert to fraction form
    31,559.44/43,539.78 = 18,125.80/x
  3. Step 3: Cross multiply
    31,559.44x = 43,539.78 × 18,125.80
  4. Step 4: Simplify right side
    31,559.44x = 789,193,344.32
  5. Step 5: Solve for x
    x = 789,193,344.32/31,559.44
  6. Step 6: Final answer
    x = 25,006.57

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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.