Home / 19,379.18-26,743.66-15,135.18

Finding the Fourth Proportional to 19,379.18, 26,743.66 and 15,135.18

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Solution

The fourth proportional to 19,379.18, 26,743.66 and 15,135.18 is: 20,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,379.18 : 26,743.66 = 15,135.18 : x
  2. Step 2: Convert to fraction form
    19,379.18/26,743.66 = 15,135.18/x
  3. Step 3: Cross multiply
    19,379.18x = 26,743.66 × 15,135.18
  4. Step 4: Simplify right side
    19,379.18x = 404,770,107.96
  5. Step 5: Solve for x
    x = 404,770,107.96/19,379.18
  6. Step 6: Final answer
    x = 20,886.85

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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.