Home / 19,760.43-27,256.93-13,789.92

Finding the Fourth Proportional to 19,760.43, 27,256.93 and 13,789.92

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Solution

The fourth proportional to 19,760.43, 27,256.93 and 13,789.92 is: 19,021.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.43 : 27,256.93 = 13,789.92 : x
  2. Step 2: Convert to fraction form
    19,760.43/27,256.93 = 13,789.92/x
  3. Step 3: Cross multiply
    19,760.43x = 27,256.93 × 13,789.92
  4. Step 4: Simplify right side
    19,760.43x = 375,870,815.20
  5. Step 5: Solve for x
    x = 375,870,815.20/19,760.43
  6. Step 6: Final answer
    x = 19,021.39

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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.