Home / 30,928.14-46,391.67-21,431.70

Finding the Fourth Proportional to 30,928.14, 46,391.67 and 21,431.70

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Solution

The fourth proportional to 30,928.14, 46,391.67 and 21,431.70 is: 32,147.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,928.14 : 46,391.67 = 21,431.70 : x
  2. Step 2: Convert to fraction form
    30,928.14/46,391.67 = 21,431.70/x
  3. Step 3: Cross multiply
    30,928.14x = 46,391.67 × 21,431.70
  4. Step 4: Simplify right side
    30,928.14x = 994,252,353.94
  5. Step 5: Solve for x
    x = 994,252,353.94/30,928.14
  6. Step 6: Final answer
    x = 32,147.18

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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.