Home / 20,731.75-28,610.02-11,300.52

Finding the Fourth Proportional to 20,731.75, 28,610.02 and 11,300.52

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Solution

The fourth proportional to 20,731.75, 28,610.02 and 11,300.52 is: 15,594.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731.75 : 28,610.02 = 11,300.52 : x
  2. Step 2: Convert to fraction form
    20,731.75/28,610.02 = 11,300.52/x
  3. Step 3: Cross multiply
    20,731.75x = 28,610.02 × 11,300.52
  4. Step 4: Simplify right side
    20,731.75x = 323,308,103.21
  5. Step 5: Solve for x
    x = 323,308,103.21/20,731.75
  6. Step 6: Final answer
    x = 15,594.83

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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.