Home / 26,433.12-39,636.56-8,419

Finding the Fourth Proportional to 26,433.12, 39,636.56 and 8,419

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Solution

The fourth proportional to 26,433.12, 39,636.56 and 8,419 is: 12,624.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,433.12 : 39,636.56 = 8,419 : x
  2. Step 2: Convert to fraction form
    26,433.12/39,636.56 = 8,419/x
  3. Step 3: Cross multiply
    26,433.12x = 39,636.56 × 8,419
  4. Step 4: Simplify right side
    26,433.12x = 333,700,198.64
  5. Step 5: Solve for x
    x = 333,700,198.64/26,433.12
  6. Step 6: Final answer
    x = 12,624.32

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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.