Home / 19,842.43-27,382.89-10,890.77

Finding the Fourth Proportional to 19,842.43, 27,382.89 and 10,890.77

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Solution

The fourth proportional to 19,842.43, 27,382.89 and 10,890.77 is: 15,029.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.43 : 27,382.89 = 10,890.77 : x
  2. Step 2: Convert to fraction form
    19,842.43/27,382.89 = 10,890.77/x
  3. Step 3: Cross multiply
    19,842.43x = 27,382.89 × 10,890.77
  4. Step 4: Simplify right side
    19,842.43x = 298,220,620.01
  5. Step 5: Solve for x
    x = 298,220,620.01/19,842.43
  6. Step 6: Final answer
    x = 15,029.44

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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.