Home / 20,764.17-28,654.58-11,332.73

Finding the Fourth Proportional to 20,764.17, 28,654.58 and 11,332.73

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Solution

The fourth proportional to 20,764.17, 28,654.58 and 11,332.73 is: 15,639.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764.17 : 28,654.58 = 11,332.73 : x
  2. Step 2: Convert to fraction form
    20,764.17/28,654.58 = 11,332.73/x
  3. Step 3: Cross multiply
    20,764.17x = 28,654.58 × 11,332.73
  4. Step 4: Simplify right side
    20,764.17x = 324,734,772.10
  5. Step 5: Solve for x
    x = 324,734,772.10/20,764.17
  6. Step 6: Final answer
    x = 15,639.19

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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.