Home / 19,842.36-27,382.71-10,889.65

Finding the Fourth Proportional to 19,842.36, 27,382.71 and 10,889.65

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Solution

The fourth proportional to 19,842.36, 27,382.71 and 10,889.65 is: 15,027.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.36 : 27,382.71 = 10,889.65 : x
  2. Step 2: Convert to fraction form
    19,842.36/27,382.71 = 10,889.65/x
  3. Step 3: Cross multiply
    19,842.36x = 27,382.71 × 10,889.65
  4. Step 4: Simplify right side
    19,842.36x = 298,188,127.95
  5. Step 5: Solve for x
    x = 298,188,127.95/19,842.36
  6. Step 6: Final answer
    x = 15,027.86

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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.