Home / 20,360.75-30,679.83-16,743.99

Finding the Fourth Proportional to 20,360.75, 30,679.83 and 16,743.99

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Solution

The fourth proportional to 20,360.75, 30,679.83 and 16,743.99 is: 25,230.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.75 : 30,679.83 = 16,743.99 : x
  2. Step 2: Convert to fraction form
    20,360.75/30,679.83 = 16,743.99/x
  3. Step 3: Cross multiply
    20,360.75x = 30,679.83 × 16,743.99
  4. Step 4: Simplify right side
    20,360.75x = 513,702,683.00
  5. Step 5: Solve for x
    x = 513,702,683.00/20,360.75
  6. Step 6: Final answer
    x = 25,230.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.