Home / 19,938-27,517.68-11,559.36

Finding the Fourth Proportional to 19,938, 27,517.68 and 11,559.36

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Solution

The fourth proportional to 19,938, 27,517.68 and 11,559.36 is: 15,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938 : 27,517.68 = 11,559.36 : x
  2. Step 2: Convert to fraction form
    19,938/27,517.68 = 11,559.36/x
  3. Step 3: Cross multiply
    19,938x = 27,517.68 × 11,559.36
  4. Step 4: Simplify right side
    19,938x = 318,086,769.48
  5. Step 5: Solve for x
    x = 318,086,769.48/19,938
  6. Step 6: Final answer
    x = 15,953.80

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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.