Home / 20,036.60-27,650.16-11,083.89

Finding the Fourth Proportional to 20,036.60, 27,650.16 and 11,083.89

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Solution

The fourth proportional to 20,036.60, 27,650.16 and 11,083.89 is: 15,295.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.60 : 27,650.16 = 11,083.89 : x
  2. Step 2: Convert to fraction form
    20,036.60/27,650.16 = 11,083.89/x
  3. Step 3: Cross multiply
    20,036.60x = 27,650.16 × 11,083.89
  4. Step 4: Simplify right side
    20,036.60x = 306,471,331.92
  5. Step 5: Solve for x
    x = 306,471,331.92/20,036.60
  6. Step 6: Final answer
    x = 15,295.58

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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.