Home / 31,782.24-43,863.84-19,211.04

Finding the Fourth Proportional to 31,782.24, 43,863.84 and 19,211.04

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Solution

The fourth proportional to 31,782.24, 43,863.84 and 19,211.04 is: 26,513.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,782.24 : 43,863.84 = 19,211.04 : x
  2. Step 2: Convert to fraction form
    31,782.24/43,863.84 = 19,211.04/x
  3. Step 3: Cross multiply
    31,782.24x = 43,863.84 × 19,211.04
  4. Step 4: Simplify right side
    31,782.24x = 842,669,984.79
  5. Step 5: Solve for x
    x = 842,669,984.79/31,782.24
  6. Step 6: Final answer
    x = 26,513.86

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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.