Home / 31,221.96-46,791.60-16,400.56

Finding the Fourth Proportional to 31,221.96, 46,791.60 and 16,400.56

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Solution

The fourth proportional to 31,221.96, 46,791.60 and 16,400.56 is: 24,579.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,221.96 : 46,791.60 = 16,400.56 : x
  2. Step 2: Convert to fraction form
    31,221.96/46,791.60 = 16,400.56/x
  3. Step 3: Cross multiply
    31,221.96x = 46,791.60 × 16,400.56
  4. Step 4: Simplify right side
    31,221.96x = 767,408,443.30
  5. Step 5: Solve for x
    x = 767,408,443.30/31,221.96
  6. Step 6: Final answer
    x = 24,579.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.