Home / 21,023.76-31,544.96-11,160.66

Finding the Fourth Proportional to 21,023.76, 31,544.96 and 11,160.66

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Solution

The fourth proportional to 21,023.76, 31,544.96 and 11,160.66 is: 16,745.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,023.76 : 31,544.96 = 11,160.66 : x
  2. Step 2: Convert to fraction form
    21,023.76/31,544.96 = 11,160.66/x
  3. Step 3: Cross multiply
    21,023.76x = 31,544.96 × 11,160.66
  4. Step 4: Simplify right side
    21,023.76x = 352,062,517.47
  5. Step 5: Solve for x
    x = 352,062,517.47/21,023.76
  6. Step 6: Final answer
    x = 16,745.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.