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Finding the Fourth Proportional to 18,954, 28,437.48 and 10,623.96

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Solution

The fourth proportional to 18,954, 28,437.48 and 10,623.96 is: 15,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954 : 28,437.48 = 10,623.96 : x
  2. Step 2: Convert to fraction form
    18,954/28,437.48 = 10,623.96/x
  3. Step 3: Cross multiply
    18,954x = 28,437.48 × 10,623.96
  4. Step 4: Simplify right side
    18,954x = 302,118,650.02
  5. Step 5: Solve for x
    x = 302,118,650.02/18,954
  6. Step 6: Final answer
    x = 15,939.57

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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.