Home / 31,183.21-46,782.12-21,327.13

Finding the Fourth Proportional to 31,183.21, 46,782.12 and 21,327.13

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Solution

The fourth proportional to 31,183.21, 46,782.12 and 21,327.13 is: 31,995.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,183.21 : 46,782.12 = 21,327.13 : x
  2. Step 2: Convert to fraction form
    31,183.21/46,782.12 = 21,327.13/x
  3. Step 3: Cross multiply
    31,183.21x = 46,782.12 × 21,327.13
  4. Step 4: Simplify right side
    31,183.21x = 997,728,354.92
  5. Step 5: Solve for x
    x = 997,728,354.92/31,183.21
  6. Step 6: Final answer
    x = 31,995.69

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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.