Home / 26,929.40-40,399.92-8,208.96

Finding the Fourth Proportional to 26,929.40, 40,399.92 and 8,208.96

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Solution

The fourth proportional to 26,929.40, 40,399.92 and 8,208.96 is: 12,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,929.40 : 40,399.92 = 8,208.96 : x
  2. Step 2: Convert to fraction form
    26,929.40/40,399.92 = 8,208.96/x
  3. Step 3: Cross multiply
    26,929.40x = 40,399.92 × 8,208.96
  4. Step 4: Simplify right side
    26,929.40x = 331,641,327.28
  5. Step 5: Solve for x
    x = 331,641,327.28/26,929.40
  6. Step 6: Final answer
    x = 12,315.21

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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.