Home / 20,837.13-28,753.43-11,761.99

Finding the Fourth Proportional to 20,837.13, 28,753.43 and 11,761.99

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Solution

The fourth proportional to 20,837.13, 28,753.43 and 11,761.99 is: 16,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837.13 : 28,753.43 = 11,761.99 : x
  2. Step 2: Convert to fraction form
    20,837.13/28,753.43 = 11,761.99/x
  3. Step 3: Cross multiply
    20,837.13x = 28,753.43 × 11,761.99
  4. Step 4: Simplify right side
    20,837.13x = 338,197,533.26
  5. Step 5: Solve for x
    x = 338,197,533.26/20,837.13
  6. Step 6: Final answer
    x = 16,230.52

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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.