Home / 20,032.59-27,645.22-11,079.86

Finding the Fourth Proportional to 20,032.59, 27,645.22 and 11,079.86

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Solution

The fourth proportional to 20,032.59, 27,645.22 and 11,079.86 is: 15,290.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,032.59 : 27,645.22 = 11,079.86 : x
  2. Step 2: Convert to fraction form
    20,032.59/27,645.22 = 11,079.86/x
  3. Step 3: Cross multiply
    20,032.59x = 27,645.22 × 11,079.86
  4. Step 4: Simplify right side
    20,032.59x = 306,305,111.87
  5. Step 5: Solve for x
    x = 306,305,111.87/20,032.59
  6. Step 6: Final answer
    x = 15,290.34

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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.