Home / 19,780.36-27,296.85-10,827.86

Finding the Fourth Proportional to 19,780.36, 27,296.85 and 10,827.86

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Solution

The fourth proportional to 19,780.36, 27,296.85 and 10,827.86 is: 14,942.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.36 : 27,296.85 = 10,827.86 : x
  2. Step 2: Convert to fraction form
    19,780.36/27,296.85 = 10,827.86/x
  3. Step 3: Cross multiply
    19,780.36x = 27,296.85 × 10,827.86
  4. Step 4: Simplify right side
    19,780.36x = 295,566,470.24
  5. Step 5: Solve for x
    x = 295,566,470.24/19,780.36
  6. Step 6: Final answer
    x = 14,942.42

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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.