Home / 20,051.25-27,676.88-11,559.05

Finding the Fourth Proportional to 20,051.25, 27,676.88 and 11,559.05

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Solution

The fourth proportional to 20,051.25, 27,676.88 and 11,559.05 is: 15,955.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051.25 : 27,676.88 = 11,559.05 : x
  2. Step 2: Convert to fraction form
    20,051.25/27,676.88 = 11,559.05/x
  3. Step 3: Cross multiply
    20,051.25x = 27,676.88 × 11,559.05
  4. Step 4: Simplify right side
    20,051.25x = 319,918,330.28
  5. Step 5: Solve for x
    x = 319,918,330.28/20,051.25
  6. Step 6: Final answer
    x = 15,955.03

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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.