Home / 20,352.87-28,059.39-17,400.42

Finding the Fourth Proportional to 20,352.87, 28,059.39 and 17,400.42

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Solution

The fourth proportional to 20,352.87, 28,059.39 and 17,400.42 is: 23,989.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,352.87 : 28,059.39 = 17,400.42 : x
  2. Step 2: Convert to fraction form
    20,352.87/28,059.39 = 17,400.42/x
  3. Step 3: Cross multiply
    20,352.87x = 28,059.39 × 17,400.42
  4. Step 4: Simplify right side
    20,352.87x = 488,245,170.94
  5. Step 5: Solve for x
    x = 488,245,170.94/20,352.87
  6. Step 6: Final answer
    x = 23,989.01

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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.