Home / 20,761.41-28,650.87-11,330.04

Finding the Fourth Proportional to 20,761.41, 28,650.87 and 11,330.04

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Solution

The fourth proportional to 20,761.41, 28,650.87 and 11,330.04 is: 15,635.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761.41 : 28,650.87 = 11,330.04 : x
  2. Step 2: Convert to fraction form
    20,761.41/28,650.87 = 11,330.04/x
  3. Step 3: Cross multiply
    20,761.41x = 28,650.87 × 11,330.04
  4. Step 4: Simplify right side
    20,761.41x = 324,615,503.13
  5. Step 5: Solve for x
    x = 324,615,503.13/20,761.41
  6. Step 6: Final answer
    x = 15,635.52

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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.