Home / 31,863.76-43,974.30-19,117.50

Finding the Fourth Proportional to 31,863.76, 43,974.30 and 19,117.50

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Solution

The fourth proportional to 31,863.76, 43,974.30 and 19,117.50 is: 26,383.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,863.76 : 43,974.30 = 19,117.50 : x
  2. Step 2: Convert to fraction form
    31,863.76/43,974.30 = 19,117.50/x
  3. Step 3: Cross multiply
    31,863.76x = 43,974.30 × 19,117.50
  4. Step 4: Simplify right side
    31,863.76x = 840,678,680.25
  5. Step 5: Solve for x
    x = 840,678,680.25/31,863.76
  6. Step 6: Final answer
    x = 26,383.54

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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.