Home / 20,372.53-30,554.64-5,580.31

Finding the Fourth Proportional to 20,372.53, 30,554.64 and 5,580.31

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Solution

The fourth proportional to 20,372.53, 30,554.64 and 5,580.31 is: 8,369.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372.53 : 30,554.64 = 5,580.31 : x
  2. Step 2: Convert to fraction form
    20,372.53/30,554.64 = 5,580.31/x
  3. Step 3: Cross multiply
    20,372.53x = 30,554.64 × 5,580.31
  4. Step 4: Simplify right side
    20,372.53x = 170,504,286.75
  5. Step 5: Solve for x
    x = 170,504,286.75/20,372.53
  6. Step 6: Final answer
    x = 8,369.32

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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.