Home / 19,917.88-27,487.98-11,534.38

Finding the Fourth Proportional to 19,917.88, 27,487.98 and 11,534.38

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Solution

The fourth proportional to 19,917.88, 27,487.98 and 11,534.38 is: 15,918.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.88 : 27,487.98 = 11,534.38 : x
  2. Step 2: Convert to fraction form
    19,917.88/27,487.98 = 11,534.38/x
  3. Step 3: Cross multiply
    19,917.88x = 27,487.98 × 11,534.38
  4. Step 4: Simplify right side
    19,917.88x = 317,056,669.31
  5. Step 5: Solve for x
    x = 317,056,669.31/19,917.88
  6. Step 6: Final answer
    x = 15,918.20

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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.