Home / 20,183.69-27,859.67-13,013.61

Finding the Fourth Proportional to 20,183.69, 27,859.67 and 13,013.61

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Solution

The fourth proportional to 20,183.69, 27,859.67 and 13,013.61 is: 17,962.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.69 : 27,859.67 = 13,013.61 : x
  2. Step 2: Convert to fraction form
    20,183.69/27,859.67 = 13,013.61/x
  3. Step 3: Cross multiply
    20,183.69x = 27,859.67 × 13,013.61
  4. Step 4: Simplify right side
    20,183.69x = 362,554,912.64
  5. Step 5: Solve for x
    x = 362,554,912.64/20,183.69
  6. Step 6: Final answer
    x = 17,962.77

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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.