Home / 20,761.49-28,650.95-11,330.26

Finding the Fourth Proportional to 20,761.49, 28,650.95 and 11,330.26

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Solution

The fourth proportional to 20,761.49, 28,650.95 and 11,330.26 is: 15,635.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761.49 : 28,650.95 = 11,330.26 : x
  2. Step 2: Convert to fraction form
    20,761.49/28,650.95 = 11,330.26/x
  3. Step 3: Cross multiply
    20,761.49x = 28,650.95 × 11,330.26
  4. Step 4: Simplify right side
    20,761.49x = 324,622,626.96
  5. Step 5: Solve for x
    x = 324,622,626.96/20,761.49
  6. Step 6: Final answer
    x = 15,635.80

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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.