Home / 20,958.75-28,923.53-11,527.31

Finding the Fourth Proportional to 20,958.75, 28,923.53 and 11,527.31

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Solution

The fourth proportional to 20,958.75, 28,923.53 and 11,527.31 is: 15,907.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958.75 : 28,923.53 = 11,527.31 : x
  2. Step 2: Convert to fraction form
    20,958.75/28,923.53 = 11,527.31/x
  3. Step 3: Cross multiply
    20,958.75x = 28,923.53 × 11,527.31
  4. Step 4: Simplify right side
    20,958.75x = 333,410,576.12
  5. Step 5: Solve for x
    x = 333,410,576.12/20,958.75
  6. Step 6: Final answer
    x = 15,907.94

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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.