Home / 26,438.19-39,662.75-8,909.38

Finding the Fourth Proportional to 26,438.19, 39,662.75 and 8,909.38

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Solution

The fourth proportional to 26,438.19, 39,662.75 and 8,909.38 is: 13,365.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,438.19 : 39,662.75 = 8,909.38 : x
  2. Step 2: Convert to fraction form
    26,438.19/39,662.75 = 8,909.38/x
  3. Step 3: Cross multiply
    26,438.19x = 39,662.75 × 8,909.38
  4. Step 4: Simplify right side
    26,438.19x = 353,370,511.60
  5. Step 5: Solve for x
    x = 353,370,511.60/26,438.19
  6. Step 6: Final answer
    x = 13,365.91

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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.