Home / 20,975.68-31,458.48-6,180.60

Finding the Fourth Proportional to 20,975.68, 31,458.48 and 6,180.60

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Solution

The fourth proportional to 20,975.68, 31,458.48 and 6,180.60 is: 9,269.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,975.68 : 31,458.48 = 6,180.60 : x
  2. Step 2: Convert to fraction form
    20,975.68/31,458.48 = 6,180.60/x
  3. Step 3: Cross multiply
    20,975.68x = 31,458.48 × 6,180.60
  4. Step 4: Simplify right side
    20,975.68x = 194,432,281.49
  5. Step 5: Solve for x
    x = 194,432,281.49/20,975.68
  6. Step 6: Final answer
    x = 9,269.41

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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.