Home / 20,177.54-27,837.48-12,621

Finding the Fourth Proportional to 20,177.54, 27,837.48 and 12,621

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Solution

The fourth proportional to 20,177.54, 27,837.48 and 12,621 is: 17,412.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.54 : 27,837.48 = 12,621 : x
  2. Step 2: Convert to fraction form
    20,177.54/27,837.48 = 12,621/x
  3. Step 3: Cross multiply
    20,177.54x = 27,837.48 × 12,621
  4. Step 4: Simplify right side
    20,177.54x = 351,336,866.63
  5. Step 5: Solve for x
    x = 351,336,866.63/20,177.54
  6. Step 6: Final answer
    x = 17,412.27

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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.