Home / 21,407.22-32,104.65-8,256.54

Finding the Fourth Proportional to 21,407.22, 32,104.65 and 8,256.54

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Solution

The fourth proportional to 21,407.22, 32,104.65 and 8,256.54 is: 12,382.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407.22 : 32,104.65 = 8,256.54 : x
  2. Step 2: Convert to fraction form
    21,407.22/32,104.65 = 8,256.54/x
  3. Step 3: Cross multiply
    21,407.22x = 32,104.65 × 8,256.54
  4. Step 4: Simplify right side
    21,407.22x = 265,073,326.91
  5. Step 5: Solve for x
    x = 265,073,326.91/21,407.22
  6. Step 6: Final answer
    x = 12,382.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.