Home / 18,933.20-26,103.54-15,517.62

Finding the Fourth Proportional to 18,933.20, 26,103.54 and 15,517.62

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Solution

The fourth proportional to 18,933.20, 26,103.54 and 15,517.62 is: 21,394.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.20 : 26,103.54 = 15,517.62 : x
  2. Step 2: Convert to fraction form
    18,933.20/26,103.54 = 15,517.62/x
  3. Step 3: Cross multiply
    18,933.20x = 26,103.54 × 15,517.62
  4. Step 4: Simplify right side
    18,933.20x = 405,064,814.37
  5. Step 5: Solve for x
    x = 405,064,814.37/18,933.20
  6. Step 6: Final answer
    x = 21,394.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.