Home / 30,272.32-41,753.46-20,843.92

Finding the Fourth Proportional to 30,272.32, 41,753.46 and 20,843.92

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Solution

The fourth proportional to 30,272.32, 41,753.46 and 20,843.92 is: 28,749.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,272.32 : 41,753.46 = 20,843.92 : x
  2. Step 2: Convert to fraction form
    30,272.32/41,753.46 = 20,843.92/x
  3. Step 3: Cross multiply
    30,272.32x = 41,753.46 × 20,843.92
  4. Step 4: Simplify right side
    30,272.32x = 870,305,779.96
  5. Step 5: Solve for x
    x = 870,305,779.96/30,272.32
  6. Step 6: Final answer
    x = 28,749.23

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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.