Home / 20,079.66-27,707.96-11,582.56

Finding the Fourth Proportional to 20,079.66, 27,707.96 and 11,582.56

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Solution

The fourth proportional to 20,079.66, 27,707.96 and 11,582.56 is: 15,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.66 : 27,707.96 = 11,582.56 : x
  2. Step 2: Convert to fraction form
    20,079.66/27,707.96 = 11,582.56/x
  3. Step 3: Cross multiply
    20,079.66x = 27,707.96 × 11,582.56
  4. Step 4: Simplify right side
    20,079.66x = 320,929,109.18
  5. Step 5: Solve for x
    x = 320,929,109.18/20,079.66
  6. Step 6: Final answer
    x = 15,982.80

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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.