Home / 18,515.20-25,550.87-17,009

Finding the Fourth Proportional to 18,515.20, 25,550.87 and 17,009

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Solution

The fourth proportional to 18,515.20, 25,550.87 and 17,009 is: 23,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.20 : 25,550.87 = 17,009 : x
  2. Step 2: Convert to fraction form
    18,515.20/25,550.87 = 17,009/x
  3. Step 3: Cross multiply
    18,515.20x = 25,550.87 × 17,009
  4. Step 4: Simplify right side
    18,515.20x = 434,594,747.83
  5. Step 5: Solve for x
    x = 434,594,747.83/18,515.20
  6. Step 6: Final answer
    x = 23,472.32

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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.