Home / 20,893.38-28,833.47-11,462.54

Finding the Fourth Proportional to 20,893.38, 28,833.47 and 11,462.54

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Solution

The fourth proportional to 20,893.38, 28,833.47 and 11,462.54 is: 15,818.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.38 : 28,833.47 = 11,462.54 : x
  2. Step 2: Convert to fraction form
    20,893.38/28,833.47 = 11,462.54/x
  3. Step 3: Cross multiply
    20,893.38x = 28,833.47 × 11,462.54
  4. Step 4: Simplify right side
    20,893.38x = 330,504,803.21
  5. Step 5: Solve for x
    x = 330,504,803.21/20,893.38
  6. Step 6: Final answer
    x = 15,818.64

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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.