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Finding the Fourth Proportional to 20,079, 27,670.83 and 14,703.09

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Solution

The fourth proportional to 20,079, 27,670.83 and 14,703.09 is: 20,262.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079 : 27,670.83 = 14,703.09 : x
  2. Step 2: Convert to fraction form
    20,079/27,670.83 = 14,703.09/x
  3. Step 3: Cross multiply
    20,079x = 27,670.83 × 14,703.09
  4. Step 4: Simplify right side
    20,079x = 406,846,544.96
  5. Step 5: Solve for x
    x = 406,846,544.96/20,079
  6. Step 6: Final answer
    x = 20,262.29

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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.