Home / 20,256.51-27,955.50-11,761.56

Finding the Fourth Proportional to 20,256.51, 27,955.50 and 11,761.56

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Solution

The fourth proportional to 20,256.51, 27,955.50 and 11,761.56 is: 16,231.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.51 : 27,955.50 = 11,761.56 : x
  2. Step 2: Convert to fraction form
    20,256.51/27,955.50 = 11,761.56/x
  3. Step 3: Cross multiply
    20,256.51x = 27,955.50 × 11,761.56
  4. Step 4: Simplify right side
    20,256.51x = 328,800,290.58
  5. Step 5: Solve for x
    x = 328,800,290.58/20,256.51
  6. Step 6: Final answer
    x = 16,231.83

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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.