Home / 18,108.38-27,038.68-16,222.09

Finding the Fourth Proportional to 18,108.38, 27,038.68 and 16,222.09

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Solution

The fourth proportional to 18,108.38, 27,038.68 and 16,222.09 is: 24,222.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.38 : 27,038.68 = 16,222.09 : x
  2. Step 2: Convert to fraction form
    18,108.38/27,038.68 = 16,222.09/x
  3. Step 3: Cross multiply
    18,108.38x = 27,038.68 × 16,222.09
  4. Step 4: Simplify right side
    18,108.38x = 438,623,900.44
  5. Step 5: Solve for x
    x = 438,623,900.44/18,108.38
  6. Step 6: Final answer
    x = 24,222.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.