Home / 20,018.14-27,623.48-11,520.73

Finding the Fourth Proportional to 20,018.14, 27,623.48 and 11,520.73

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Solution

The fourth proportional to 20,018.14, 27,623.48 and 11,520.73 is: 15,897.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.14 : 27,623.48 = 11,520.73 : x
  2. Step 2: Convert to fraction form
    20,018.14/27,623.48 = 11,520.73/x
  3. Step 3: Cross multiply
    20,018.14x = 27,623.48 × 11,520.73
  4. Step 4: Simplify right side
    20,018.14x = 318,242,631.67
  5. Step 5: Solve for x
    x = 318,242,631.67/20,018.14
  6. Step 6: Final answer
    x = 15,897.71

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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.