Home / 20,079.25-27,707.12-11,124.53

Finding the Fourth Proportional to 20,079.25, 27,707.12 and 11,124.53

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Solution

The fourth proportional to 20,079.25, 27,707.12 and 11,124.53 is: 15,350.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.25 : 27,707.12 = 11,124.53 : x
  2. Step 2: Convert to fraction form
    20,079.25/27,707.12 = 11,124.53/x
  3. Step 3: Cross multiply
    20,079.25x = 27,707.12 × 11,124.53
  4. Step 4: Simplify right side
    20,079.25x = 308,228,632.03
  5. Step 5: Solve for x
    x = 308,228,632.03/20,079.25
  6. Step 6: Final answer
    x = 15,350.61

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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.