Home / 20,309.54-30,390.44-16,766.60

Finding the Fourth Proportional to 20,309.54, 30,390.44 and 16,766.60

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Solution

The fourth proportional to 20,309.54, 30,390.44 and 16,766.60 is: 25,088.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,309.54 : 30,390.44 = 16,766.60 : x
  2. Step 2: Convert to fraction form
    20,309.54/30,390.44 = 16,766.60/x
  3. Step 3: Cross multiply
    20,309.54x = 30,390.44 × 16,766.60
  4. Step 4: Simplify right side
    20,309.54x = 509,544,351.30
  5. Step 5: Solve for x
    x = 509,544,351.30/20,309.54
  6. Step 6: Final answer
    x = 25,088.92

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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.