Home / 18,391.94-27,548.75-13,900.12

Finding the Fourth Proportional to 18,391.94, 27,548.75 and 13,900.12

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Solution

The fourth proportional to 18,391.94, 27,548.75 and 13,900.12 is: 20,820.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,391.94 : 27,548.75 = 13,900.12 : x
  2. Step 2: Convert to fraction form
    18,391.94/27,548.75 = 13,900.12/x
  3. Step 3: Cross multiply
    18,391.94x = 27,548.75 × 13,900.12
  4. Step 4: Simplify right side
    18,391.94x = 382,930,895.79
  5. Step 5: Solve for x
    x = 382,930,895.79/18,391.94
  6. Step 6: Final answer
    x = 20,820.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.