Home / 20,279.52-27,782.46-19,521.44

Finding the Fourth Proportional to 20,279.52, 27,782.46 and 19,521.44

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Solution

The fourth proportional to 20,279.52, 27,782.46 and 19,521.44 is: 26,743.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.52 : 27,782.46 = 19,521.44 : x
  2. Step 2: Convert to fraction form
    20,279.52/27,782.46 = 19,521.44/x
  3. Step 3: Cross multiply
    20,279.52x = 27,782.46 × 19,521.44
  4. Step 4: Simplify right side
    20,279.52x = 542,353,487.03
  5. Step 5: Solve for x
    x = 542,353,487.03/20,279.52
  6. Step 6: Final answer
    x = 26,743.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.