Home / 28,203.82-38,832.45-21,467.86

Finding the Fourth Proportional to 28,203.82, 38,832.45 and 21,467.86

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Solution

The fourth proportional to 28,203.82, 38,832.45 and 21,467.86 is: 29,558.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.82 : 38,832.45 = 21,467.86 : x
  2. Step 2: Convert to fraction form
    28,203.82/38,832.45 = 21,467.86/x
  3. Step 3: Cross multiply
    28,203.82x = 38,832.45 × 21,467.86
  4. Step 4: Simplify right side
    28,203.82x = 833,649,600.06
  5. Step 5: Solve for x
    x = 833,649,600.06/28,203.82
  6. Step 6: Final answer
    x = 29,558.04

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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.