Home / 20,677.82-28,535.18-11,246.38

Finding the Fourth Proportional to 20,677.82, 28,535.18 and 11,246.38

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Solution

The fourth proportional to 20,677.82, 28,535.18 and 11,246.38 is: 15,519.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.82 : 28,535.18 = 11,246.38 : x
  2. Step 2: Convert to fraction form
    20,677.82/28,535.18 = 11,246.38/x
  3. Step 3: Cross multiply
    20,677.82x = 28,535.18 × 11,246.38
  4. Step 4: Simplify right side
    20,677.82x = 320,917,350.08
  5. Step 5: Solve for x
    x = 320,917,350.08/20,677.82
  6. Step 6: Final answer
    x = 15,519.89

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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.