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Finding the Fourth Proportional to 18,672.11, 28,069.62 and 17,302.47

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Solution

The fourth proportional to 18,672.11, 28,069.62 and 17,302.47 is: 26,010.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672.11 : 28,069.62 = 17,302.47 : x
  2. Step 2: Convert to fraction form
    18,672.11/28,069.62 = 17,302.47/x
  3. Step 3: Cross multiply
    18,672.11x = 28,069.62 × 17,302.47
  4. Step 4: Simplify right side
    18,672.11x = 485,673,757.96
  5. Step 5: Solve for x
    x = 485,673,757.96/18,672.11
  6. Step 6: Final answer
    x = 26,010.65

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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.