Home / 19,879.92-27,432.59-11,702.66

Finding the Fourth Proportional to 19,879.92, 27,432.59 and 11,702.66

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Solution

The fourth proportional to 19,879.92, 27,432.59 and 11,702.66 is: 16,148.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.92 : 27,432.59 = 11,702.66 : x
  2. Step 2: Convert to fraction form
    19,879.92/27,432.59 = 11,702.66/x
  3. Step 3: Cross multiply
    19,879.92x = 27,432.59 × 11,702.66
  4. Step 4: Simplify right side
    19,879.92x = 321,034,078.01
  5. Step 5: Solve for x
    x = 321,034,078.01/19,879.92
  6. Step 6: Final answer
    x = 16,148.66

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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.