Home / 20,086.92-27,719.28-11,134.08

Finding the Fourth Proportional to 20,086.92, 27,719.28 and 11,134.08

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Solution

The fourth proportional to 20,086.92, 27,719.28 and 11,134.08 is: 15,364.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.92 : 27,719.28 = 11,134.08 : x
  2. Step 2: Convert to fraction form
    20,086.92/27,719.28 = 11,134.08/x
  3. Step 3: Cross multiply
    20,086.92x = 27,719.28 × 11,134.08
  4. Step 4: Simplify right side
    20,086.92x = 308,628,681.06
  5. Step 5: Solve for x
    x = 308,628,681.06/20,086.92
  6. Step 6: Final answer
    x = 15,364.66

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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.