Home / 18,013.46-27,020.39-14,142.47

Finding the Fourth Proportional to 18,013.46, 27,020.39 and 14,142.47

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Solution

The fourth proportional to 18,013.46, 27,020.39 and 14,142.47 is: 21,213.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,013.46 : 27,020.39 = 14,142.47 : x
  2. Step 2: Convert to fraction form
    18,013.46/27,020.39 = 14,142.47/x
  3. Step 3: Cross multiply
    18,013.46x = 27,020.39 × 14,142.47
  4. Step 4: Simplify right side
    18,013.46x = 382,134,849.15
  5. Step 5: Solve for x
    x = 382,134,849.15/18,013.46
  6. Step 6: Final answer
    x = 21,213.86

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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.