Home / 20,764.28-28,654.26-11,333

Finding the Fourth Proportional to 20,764.28, 28,654.26 and 11,333

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Solution

The fourth proportional to 20,764.28, 28,654.26 and 11,333 is: 15,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764.28 : 28,654.26 = 11,333 : x
  2. Step 2: Convert to fraction form
    20,764.28/28,654.26 = 11,333/x
  3. Step 3: Cross multiply
    20,764.28x = 28,654.26 × 11,333
  4. Step 4: Simplify right side
    20,764.28x = 324,738,728.58
  5. Step 5: Solve for x
    x = 324,738,728.58/20,764.28
  6. Step 6: Final answer
    x = 15,639.30

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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.