Home / 21,201.16-31,741.26-16,825

Finding the Fourth Proportional to 21,201.16, 31,741.26 and 16,825

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Solution

The fourth proportional to 21,201.16, 31,741.26 and 16,825 is: 25,189.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201.16 : 31,741.26 = 16,825 : x
  2. Step 2: Convert to fraction form
    21,201.16/31,741.26 = 16,825/x
  3. Step 3: Cross multiply
    21,201.16x = 31,741.26 × 16,825
  4. Step 4: Simplify right side
    21,201.16x = 534,046,699.50
  5. Step 5: Solve for x
    x = 534,046,699.50/21,201.16
  6. Step 6: Final answer
    x = 25,189.50

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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.