Home / 20,966.25-28,933.43-11,534.61

Finding the Fourth Proportional to 20,966.25, 28,933.43 and 11,534.61

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Solution

The fourth proportional to 20,966.25, 28,933.43 and 11,534.61 is: 15,917.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.25 : 28,933.43 = 11,534.61 : x
  2. Step 2: Convert to fraction form
    20,966.25/28,933.43 = 11,534.61/x
  3. Step 3: Cross multiply
    20,966.25x = 28,933.43 × 11,534.61
  4. Step 4: Simplify right side
    20,966.25x = 333,735,773.34
  5. Step 5: Solve for x
    x = 333,735,773.34/20,966.25
  6. Step 6: Final answer
    x = 15,917.76

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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.