Home / 31,454.80-43,408.82-18,028.64

Finding the Fourth Proportional to 31,454.80, 43,408.82 and 18,028.64

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Solution

The fourth proportional to 31,454.80, 43,408.82 and 18,028.64 is: 24,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,454.80 : 43,408.82 = 18,028.64 : x
  2. Step 2: Convert to fraction form
    31,454.80/43,408.82 = 18,028.64/x
  3. Step 3: Cross multiply
    31,454.80x = 43,408.82 × 18,028.64
  4. Step 4: Simplify right side
    31,454.80x = 782,601,898.46
  5. Step 5: Solve for x
    x = 782,601,898.46/31,454.80
  6. Step 6: Final answer
    x = 24,880.21

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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.