Home / 21,400.55-32,108.43-9,553.25

Finding the Fourth Proportional to 21,400.55, 32,108.43 and 9,553.25

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Solution

The fourth proportional to 21,400.55, 32,108.43 and 9,553.25 is: 14,333.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,400.55 : 32,108.43 = 9,553.25 : x
  2. Step 2: Convert to fraction form
    21,400.55/32,108.43 = 9,553.25/x
  3. Step 3: Cross multiply
    21,400.55x = 32,108.43 × 9,553.25
  4. Step 4: Simplify right side
    21,400.55x = 306,739,858.90
  5. Step 5: Solve for x
    x = 306,739,858.90/21,400.55
  6. Step 6: Final answer
    x = 14,333.27

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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.