Home / 20,966.14-28,932.64-11,534.69

Finding the Fourth Proportional to 20,966.14, 28,932.64 and 11,534.69

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Solution

The fourth proportional to 20,966.14, 28,932.64 and 11,534.69 is: 15,917.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.14 : 28,932.64 = 11,534.69 : x
  2. Step 2: Convert to fraction form
    20,966.14/28,932.64 = 11,534.69/x
  3. Step 3: Cross multiply
    20,966.14x = 28,932.64 × 11,534.69
  4. Step 4: Simplify right side
    20,966.14x = 333,729,033.28
  5. Step 5: Solve for x
    x = 333,729,033.28/20,966.14
  6. Step 6: Final answer
    x = 15,917.52

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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.