Home / 26,393.85-39,609-13,913.37

Finding the Fourth Proportional to 26,393.85, 39,609 and 13,913.37

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Solution

The fourth proportional to 26,393.85, 39,609 and 13,913.37 is: 20,879.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,393.85 : 39,609 = 13,913.37 : x
  2. Step 2: Convert to fraction form
    26,393.85/39,609 = 13,913.37/x
  3. Step 3: Cross multiply
    26,393.85x = 39,609 × 13,913.37
  4. Step 4: Simplify right side
    26,393.85x = 551,094,672.33
  5. Step 5: Solve for x
    x = 551,094,672.33/26,393.85
  6. Step 6: Final answer
    x = 20,879.66

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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.