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Finding the Fourth Proportional to 23,189, 34,783.50 and 10,877

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Solution

The fourth proportional to 23,189, 34,783.50 and 10,877 is: 16,315.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,189 : 34,783.50 = 10,877 : x
  2. Step 2: Convert to fraction form
    23,189/34,783.50 = 10,877/x
  3. Step 3: Cross multiply
    23,189x = 34,783.50 × 10,877
  4. Step 4: Simplify right side
    23,189x = 378,340,129.50
  5. Step 5: Solve for x
    x = 378,340,129.50/23,189
  6. Step 6: Final answer
    x = 16,315.50

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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.