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Finding the Fourth Proportional to 18,897, 28,346.67 and 5,750.34

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Solution

The fourth proportional to 18,897, 28,346.67 and 5,750.34 is: 8,625.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897 : 28,346.67 = 5,750.34 : x
  2. Step 2: Convert to fraction form
    18,897/28,346.67 = 5,750.34/x
  3. Step 3: Cross multiply
    18,897x = 28,346.67 × 5,750.34
  4. Step 4: Simplify right side
    18,897x = 163,002,990.37
  5. Step 5: Solve for x
    x = 163,002,990.37/18,897
  6. Step 6: Final answer
    x = 8,625.87

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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.