Home / 31,548.87-43,537.48-18,122.73

Finding the Fourth Proportional to 31,548.87, 43,537.48 and 18,122.73

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Solution

The fourth proportional to 31,548.87, 43,537.48 and 18,122.73 is: 25,009.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,548.87 : 43,537.48 = 18,122.73 : x
  2. Step 2: Convert to fraction form
    31,548.87/43,537.48 = 18,122.73/x
  3. Step 3: Cross multiply
    31,548.87x = 43,537.48 × 18,122.73
  4. Step 4: Simplify right side
    31,548.87x = 789,017,686.62
  5. Step 5: Solve for x
    x = 789,017,686.62/31,548.87
  6. Step 6: Final answer
    x = 25,009.38

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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.