Home / 28,519.66-39,367.55-17,189.56

Finding the Fourth Proportional to 28,519.66, 39,367.55 and 17,189.56

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Solution

The fourth proportional to 28,519.66, 39,367.55 and 17,189.56 is: 23,727.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.66 : 39,367.55 = 17,189.56 : x
  2. Step 2: Convert to fraction form
    28,519.66/39,367.55 = 17,189.56/x
  3. Step 3: Cross multiply
    28,519.66x = 39,367.55 × 17,189.56
  4. Step 4: Simplify right side
    28,519.66x = 676,710,579.99
  5. Step 5: Solve for x
    x = 676,710,579.99/28,519.66
  6. Step 6: Final answer
    x = 23,727.87

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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.