Home / 31,863.38-43,966.54-18,435.89

Finding the Fourth Proportional to 31,863.38, 43,966.54 and 18,435.89

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Solution

The fourth proportional to 31,863.38, 43,966.54 and 18,435.89 is: 25,438.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,863.38 : 43,966.54 = 18,435.89 : x
  2. Step 2: Convert to fraction form
    31,863.38/43,966.54 = 18,435.89/x
  3. Step 3: Cross multiply
    31,863.38x = 43,966.54 × 18,435.89
  4. Step 4: Simplify right side
    31,863.38x = 810,562,128.92
  5. Step 5: Solve for x
    x = 810,562,128.92/31,863.38
  6. Step 6: Final answer
    x = 25,438.67

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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.