Home / 20,211.19-27,891.47-11,714.96

Finding the Fourth Proportional to 20,211.19, 27,891.47 and 11,714.96

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Solution

The fourth proportional to 20,211.19, 27,891.47 and 11,714.96 is: 16,166.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.19 : 27,891.47 = 11,714.96 : x
  2. Step 2: Convert to fraction form
    20,211.19/27,891.47 = 11,714.96/x
  3. Step 3: Cross multiply
    20,211.19x = 27,891.47 × 11,714.96
  4. Step 4: Simplify right side
    20,211.19x = 326,747,455.39
  5. Step 5: Solve for x
    x = 326,747,455.39/20,211.19
  6. Step 6: Final answer
    x = 16,166.66

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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.