Home / 31,454.45-43,408.34-18,028.29

Finding the Fourth Proportional to 31,454.45, 43,408.34 and 18,028.29

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Solution

The fourth proportional to 31,454.45, 43,408.34 and 18,028.29 is: 24,879.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,454.45 : 43,408.34 = 18,028.29 : x
  2. Step 2: Convert to fraction form
    31,454.45/43,408.34 = 18,028.29/x
  3. Step 3: Cross multiply
    31,454.45x = 43,408.34 × 18,028.29
  4. Step 4: Simplify right side
    31,454.45x = 782,578,051.80
  5. Step 5: Solve for x
    x = 782,578,051.80/31,454.45
  6. Step 6: Final answer
    x = 24,879.73

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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.