Home / 21,427.26-32,124.24-8,100.04

Finding the Fourth Proportional to 21,427.26, 32,124.24 and 8,100.04

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Solution

The fourth proportional to 21,427.26, 32,124.24 and 8,100.04 is: 12,143.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427.26 : 32,124.24 = 8,100.04 : x
  2. Step 2: Convert to fraction form
    21,427.26/32,124.24 = 8,100.04/x
  3. Step 3: Cross multiply
    21,427.26x = 32,124.24 × 8,100.04
  4. Step 4: Simplify right side
    21,427.26x = 260,207,628.97
  5. Step 5: Solve for x
    x = 260,207,628.97/21,427.26
  6. Step 6: Final answer
    x = 12,143.77

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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.