Home / 20,036.39-27,649.71-11,083.68

Finding the Fourth Proportional to 20,036.39, 27,649.71 and 11,083.68

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Solution

The fourth proportional to 20,036.39, 27,649.71 and 11,083.68 is: 15,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.39 : 27,649.71 = 11,083.68 : x
  2. Step 2: Convert to fraction form
    20,036.39/27,649.71 = 11,083.68/x
  3. Step 3: Cross multiply
    20,036.39x = 27,649.71 × 11,083.68
  4. Step 4: Simplify right side
    20,036.39x = 306,460,537.73
  5. Step 5: Solve for x
    x = 306,460,537.73/20,036.39
  6. Step 6: Final answer
    x = 15,295.20

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1.5x scale

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.