Home / 20,164.40-27,826.88-11,212.48

Finding the Fourth Proportional to 20,164.40, 27,826.88 and 11,212.48

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Solution

The fourth proportional to 20,164.40, 27,826.88 and 11,212.48 is: 15,473.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.40 : 27,826.88 = 11,212.48 : x
  2. Step 2: Convert to fraction form
    20,164.40/27,826.88 = 11,212.48/x
  3. Step 3: Cross multiply
    20,164.40x = 27,826.88 × 11,212.48
  4. Step 4: Simplify right side
    20,164.40x = 312,008,335.46
  5. Step 5: Solve for x
    x = 312,008,335.46/20,164.40
  6. Step 6: Final answer
    x = 15,473.23

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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.