Home / 20,566.81-28,383.31-11,614.69

Finding the Fourth Proportional to 20,566.81, 28,383.31 and 11,614.69

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Solution

The fourth proportional to 20,566.81, 28,383.31 and 11,614.69 is: 16,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566.81 : 28,383.31 = 11,614.69 : x
  2. Step 2: Convert to fraction form
    20,566.81/28,383.31 = 11,614.69/x
  3. Step 3: Cross multiply
    20,566.81x = 28,383.31 × 11,614.69
  4. Step 4: Simplify right side
    20,566.81x = 329,663,346.82
  5. Step 5: Solve for x
    x = 329,663,346.82/20,566.81
  6. Step 6: Final answer
    x = 16,028.90

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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.