Home / 20,517.32-28,299.87-12,563.48

Finding the Fourth Proportional to 20,517.32, 28,299.87 and 12,563.48

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Solution

The fourth proportional to 20,517.32, 28,299.87 and 12,563.48 is: 17,329.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517.32 : 28,299.87 = 12,563.48 : x
  2. Step 2: Convert to fraction form
    20,517.32/28,299.87 = 12,563.48/x
  3. Step 3: Cross multiply
    20,517.32x = 28,299.87 × 12,563.48
  4. Step 4: Simplify right side
    20,517.32x = 355,544,709.25
  5. Step 5: Solve for x
    x = 355,544,709.25/20,517.32
  6. Step 6: Final answer
    x = 17,329.01

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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.