Home / 31,706.10-43,751.37-18,956.73

Finding the Fourth Proportional to 31,706.10, 43,751.37 and 18,956.73

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Solution

The fourth proportional to 31,706.10, 43,751.37 and 18,956.73 is: 26,158.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,706.10 : 43,751.37 = 18,956.73 : x
  2. Step 2: Convert to fraction form
    31,706.10/43,751.37 = 18,956.73/x
  3. Step 3: Cross multiply
    31,706.10x = 43,751.37 × 18,956.73
  4. Step 4: Simplify right side
    31,706.10x = 829,383,143.38
  5. Step 5: Solve for x
    x = 829,383,143.38/31,706.10
  6. Step 6: Final answer
    x = 26,158.47

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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.