Home / 20,086.25-27,718.26-11,133.91

Finding the Fourth Proportional to 20,086.25, 27,718.26 and 11,133.91

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Solution

The fourth proportional to 20,086.25, 27,718.26 and 11,133.91 is: 15,364.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.25 : 27,718.26 = 11,133.91 : x
  2. Step 2: Convert to fraction form
    20,086.25/27,718.26 = 11,133.91/x
  3. Step 3: Cross multiply
    20,086.25x = 27,718.26 × 11,133.91
  4. Step 4: Simplify right side
    20,086.25x = 308,612,612.20
  5. Step 5: Solve for x
    x = 308,612,612.20/20,086.25
  6. Step 6: Final answer
    x = 15,364.37

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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.