Home / 20,747.48-28,633.95-11,796.33

Finding the Fourth Proportional to 20,747.48, 28,633.95 and 11,796.33

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Solution

The fourth proportional to 20,747.48, 28,633.95 and 11,796.33 is: 16,280.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.48 : 28,633.95 = 11,796.33 : x
  2. Step 2: Convert to fraction form
    20,747.48/28,633.95 = 11,796.33/x
  3. Step 3: Cross multiply
    20,747.48x = 28,633.95 × 11,796.33
  4. Step 4: Simplify right side
    20,747.48x = 337,775,371.79
  5. Step 5: Solve for x
    x = 337,775,371.79/20,747.48
  6. Step 6: Final answer
    x = 16,280.31

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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.