Home / 20,147.32-27,806.60-16,784.80

Finding the Fourth Proportional to 20,147.32, 27,806.60 and 16,784.80

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Solution

The fourth proportional to 20,147.32, 27,806.60 and 16,784.80 is: 23,165.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.32 : 27,806.60 = 16,784.80 : x
  2. Step 2: Convert to fraction form
    20,147.32/27,806.60 = 16,784.80/x
  3. Step 3: Cross multiply
    20,147.32x = 27,806.60 × 16,784.80
  4. Step 4: Simplify right side
    20,147.32x = 466,728,219.68
  5. Step 5: Solve for x
    x = 466,728,219.68/20,147.32
  6. Step 6: Final answer
    x = 23,165.77

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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.