Home / 20,145.56-27,804.20-16,783.04

Finding the Fourth Proportional to 20,145.56, 27,804.20 and 16,783.04

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Solution

The fourth proportional to 20,145.56, 27,804.20 and 16,783.04 is: 23,163.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145.56 : 27,804.20 = 16,783.04 : x
  2. Step 2: Convert to fraction form
    20,145.56/27,804.20 = 16,783.04/x
  3. Step 3: Cross multiply
    20,145.56x = 27,804.20 × 16,783.04
  4. Step 4: Simplify right side
    20,145.56x = 466,639,000.77
  5. Step 5: Solve for x
    x = 466,639,000.77/20,145.56
  6. Step 6: Final answer
    x = 23,163.37

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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.