Home / 19,804.91-27,332.24-13,078.80

Finding the Fourth Proportional to 19,804.91, 27,332.24 and 13,078.80

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Solution

The fourth proportional to 19,804.91, 27,332.24 and 13,078.80 is: 18,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,804.91 : 27,332.24 = 13,078.80 : x
  2. Step 2: Convert to fraction form
    19,804.91/27,332.24 = 13,078.80/x
  3. Step 3: Cross multiply
    19,804.91x = 27,332.24 × 13,078.80
  4. Step 4: Simplify right side
    19,804.91x = 357,472,835.12
  5. Step 5: Solve for x
    x = 357,472,835.12/19,804.91
  6. Step 6: Final answer
    x = 18,049.71

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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.