Home / 20,016.05-27,619.20-11,402.31

Finding the Fourth Proportional to 20,016.05, 27,619.20 and 11,402.31

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Solution

The fourth proportional to 20,016.05, 27,619.20 and 11,402.31 is: 15,733.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,016.05 : 27,619.20 = 11,402.31 : x
  2. Step 2: Convert to fraction form
    20,016.05/27,619.20 = 11,402.31/x
  3. Step 3: Cross multiply
    20,016.05x = 27,619.20 × 11,402.31
  4. Step 4: Simplify right side
    20,016.05x = 314,922,485.24
  5. Step 5: Solve for x
    x = 314,922,485.24/20,016.05
  6. Step 6: Final answer
    x = 15,733.50

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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.