Home / 20,793.51-31,160.79-16,091.64

Finding the Fourth Proportional to 20,793.51, 31,160.79 and 16,091.64

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Solution

The fourth proportional to 20,793.51, 31,160.79 and 16,091.64 is: 24,114.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793.51 : 31,160.79 = 16,091.64 : x
  2. Step 2: Convert to fraction form
    20,793.51/31,160.79 = 16,091.64/x
  3. Step 3: Cross multiply
    20,793.51x = 31,160.79 × 16,091.64
  4. Step 4: Simplify right side
    20,793.51x = 501,428,106.14
  5. Step 5: Solve for x
    x = 501,428,106.14/20,793.51
  6. Step 6: Final answer
    x = 24,114.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.