Home / 31,238.30-46,863.48-12,520.23

Finding the Fourth Proportional to 31,238.30, 46,863.48 and 12,520.23

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Solution

The fourth proportional to 31,238.30, 46,863.48 and 12,520.23 is: 18,782.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,238.30 : 46,863.48 = 12,520.23 : x
  2. Step 2: Convert to fraction form
    31,238.30/46,863.48 = 12,520.23/x
  3. Step 3: Cross multiply
    31,238.30x = 46,863.48 × 12,520.23
  4. Step 4: Simplify right side
    31,238.30x = 586,741,704.91
  5. Step 5: Solve for x
    x = 586,741,704.91/31,238.30
  6. Step 6: Final answer
    x = 18,782.76

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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.