Home / 31,550.53-43,542.07-18,122.35

Finding the Fourth Proportional to 31,550.53, 43,542.07 and 18,122.35

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Solution

The fourth proportional to 31,550.53, 43,542.07 and 18,122.35 is: 25,010.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,550.53 : 43,542.07 = 18,122.35 : x
  2. Step 2: Convert to fraction form
    31,550.53/43,542.07 = 18,122.35/x
  3. Step 3: Cross multiply
    31,550.53x = 43,542.07 × 18,122.35
  4. Step 4: Simplify right side
    31,550.53x = 789,084,632.26
  5. Step 5: Solve for x
    x = 789,084,632.26/31,550.53
  6. Step 6: Final answer
    x = 25,010.19

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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.