Home / 20,051.36-27,672.52-11,101.76

Finding the Fourth Proportional to 20,051.36, 27,672.52 and 11,101.76

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Solution

The fourth proportional to 20,051.36, 27,672.52 and 11,101.76 is: 15,321.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051.36 : 27,672.52 = 11,101.76 : x
  2. Step 2: Convert to fraction form
    20,051.36/27,672.52 = 11,101.76/x
  3. Step 3: Cross multiply
    20,051.36x = 27,672.52 × 11,101.76
  4. Step 4: Simplify right side
    20,051.36x = 307,213,675.64
  5. Step 5: Solve for x
    x = 307,213,675.64/20,051.36
  6. Step 6: Final answer
    x = 15,321.34

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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.