Home / 18,222.57-25,147.67-17,561.61

Finding the Fourth Proportional to 18,222.57, 25,147.67 and 17,561.61

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Solution

The fourth proportional to 18,222.57, 25,147.67 and 17,561.61 is: 24,235.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,222.57 : 25,147.67 = 17,561.61 : x
  2. Step 2: Convert to fraction form
    18,222.57/25,147.67 = 17,561.61/x
  3. Step 3: Cross multiply
    18,222.57x = 25,147.67 × 17,561.61
  4. Step 4: Simplify right side
    18,222.57x = 441,633,485.14
  5. Step 5: Solve for x
    x = 441,633,485.14/18,222.57
  6. Step 6: Final answer
    x = 24,235.52

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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.