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Finding the Fourth Proportional to 18,682.54, 27,899.98 and 16,419.00

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Solution

The fourth proportional to 18,682.54, 27,899.98 and 16,419.00 is: 24,519.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.54 : 27,899.98 = 16,419.00 : x
  2. Step 2: Convert to fraction form
    18,682.54/27,899.98 = 16,419.00/x
  3. Step 3: Cross multiply
    18,682.54x = 27,899.98 × 16,419.00
  4. Step 4: Simplify right side
    18,682.54x = 458,089,675.96
  5. Step 5: Solve for x
    x = 458,089,675.96/18,682.54
  6. Step 6: Final answer
    x = 24,519.66

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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.