Home / 18,515.36-25,563.12-16,522.50

Finding the Fourth Proportional to 18,515.36, 25,563.12 and 16,522.50

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Solution

The fourth proportional to 18,515.36, 25,563.12 and 16,522.50 is: 22,811.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.36 : 25,563.12 = 16,522.50 : x
  2. Step 2: Convert to fraction form
    18,515.36/25,563.12 = 16,522.50/x
  3. Step 3: Cross multiply
    18,515.36x = 25,563.12 × 16,522.50
  4. Step 4: Simplify right side
    18,515.36x = 422,366,650.20
  5. Step 5: Solve for x
    x = 422,366,650.20/18,515.36
  6. Step 6: Final answer
    x = 22,811.69

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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.