Home / 26,506.20-39,749.58-7,781.44

Finding the Fourth Proportional to 26,506.20, 39,749.58 and 7,781.44

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Solution

The fourth proportional to 26,506.20, 39,749.58 and 7,781.44 is: 11,669.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,506.20 : 39,749.58 = 7,781.44 : x
  2. Step 2: Convert to fraction form
    26,506.20/39,749.58 = 7,781.44/x
  3. Step 3: Cross multiply
    26,506.20x = 39,749.58 × 7,781.44
  4. Step 4: Simplify right side
    26,506.20x = 309,308,971.80
  5. Step 5: Solve for x
    x = 309,308,971.80/26,506.20
  6. Step 6: Final answer
    x = 11,669.31

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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.