Home / 19,760.93-27,257.61-13,790.42

Finding the Fourth Proportional to 19,760.93, 27,257.61 and 13,790.42

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Solution

The fourth proportional to 19,760.93, 27,257.61 and 13,790.42 is: 19,022.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.93 : 27,257.61 = 13,790.42 : x
  2. Step 2: Convert to fraction form
    19,760.93/27,257.61 = 13,790.42/x
  3. Step 3: Cross multiply
    19,760.93x = 27,257.61 × 13,790.42
  4. Step 4: Simplify right side
    19,760.93x = 375,893,890.10
  5. Step 5: Solve for x
    x = 375,893,890.10/19,760.93
  6. Step 6: Final answer
    x = 19,022.07

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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.