Home / 19,243.35-28,891.55-13,305.65

Finding the Fourth Proportional to 19,243.35, 28,891.55 and 13,305.65

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Solution

The fourth proportional to 19,243.35, 28,891.55 and 13,305.65 is: 19,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,243.35 : 28,891.55 = 13,305.65 : x
  2. Step 2: Convert to fraction form
    19,243.35/28,891.55 = 13,305.65/x
  3. Step 3: Cross multiply
    19,243.35x = 28,891.55 × 13,305.65
  4. Step 4: Simplify right side
    19,243.35x = 384,420,641.27
  5. Step 5: Solve for x
    x = 384,420,641.27/19,243.35
  6. Step 6: Final answer
    x = 19,976.80

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1.5x scale

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.