Home / 19,976.90-27,550.33-12,895.88

Finding the Fourth Proportional to 19,976.90, 27,550.33 and 12,895.88

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Solution

The fourth proportional to 19,976.90, 27,550.33 and 12,895.88 is: 17,784.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.90 : 27,550.33 = 12,895.88 : x
  2. Step 2: Convert to fraction form
    19,976.90/27,550.33 = 12,895.88/x
  3. Step 3: Cross multiply
    19,976.90x = 27,550.33 × 12,895.88
  4. Step 4: Simplify right side
    19,976.90x = 355,285,579.65
  5. Step 5: Solve for x
    x = 355,285,579.65/19,976.90
  6. Step 6: Final answer
    x = 17,784.82

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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.