Home / 20,764.73-28,655.32-11,333.29

Finding the Fourth Proportional to 20,764.73, 28,655.32 and 11,333.29

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Solution

The fourth proportional to 20,764.73, 28,655.32 and 11,333.29 is: 15,639.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764.73 : 28,655.32 = 11,333.29 : x
  2. Step 2: Convert to fraction form
    20,764.73/28,655.32 = 11,333.29/x
  3. Step 3: Cross multiply
    20,764.73x = 28,655.32 × 11,333.29
  4. Step 4: Simplify right side
    20,764.73x = 324,759,107.20
  5. Step 5: Solve for x
    x = 324,759,107.20/20,764.73
  6. Step 6: Final answer
    x = 15,639.94

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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.