Home / 21,254.48-31,845.24-11,892.48

Finding the Fourth Proportional to 21,254.48, 31,845.24 and 11,892.48

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Solution

The fourth proportional to 21,254.48, 31,845.24 and 11,892.48 is: 17,818.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,254.48 : 31,845.24 = 11,892.48 : x
  2. Step 2: Convert to fraction form
    21,254.48/31,845.24 = 11,892.48/x
  3. Step 3: Cross multiply
    21,254.48x = 31,845.24 × 11,892.48
  4. Step 4: Simplify right side
    21,254.48x = 378,718,879.80
  5. Step 5: Solve for x
    x = 378,718,879.80/21,254.48
  6. Step 6: Final answer
    x = 17,818.31

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1.5x scale

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.