Home / 21,769.05-30,016.53-17,777.73

Finding the Fourth Proportional to 21,769.05, 30,016.53 and 17,777.73

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Solution

The fourth proportional to 21,769.05, 30,016.53 and 17,777.73 is: 24,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,769.05 : 30,016.53 = 17,777.73 : x
  2. Step 2: Convert to fraction form
    21,769.05/30,016.53 = 17,777.73/x
  3. Step 3: Cross multiply
    21,769.05x = 30,016.53 × 17,777.73
  4. Step 4: Simplify right side
    21,769.05x = 533,625,765.88
  5. Step 5: Solve for x
    x = 533,625,765.88/21,769.05
  6. Step 6: Final answer
    x = 24,513.05

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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.