Home / 19,725.90-27,220.72-10,771.68

Finding the Fourth Proportional to 19,725.90, 27,220.72 and 10,771.68

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Solution

The fourth proportional to 19,725.90, 27,220.72 and 10,771.68 is: 14,864.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.90 : 27,220.72 = 10,771.68 : x
  2. Step 2: Convert to fraction form
    19,725.90/27,220.72 = 10,771.68/x
  3. Step 3: Cross multiply
    19,725.90x = 27,220.72 × 10,771.68
  4. Step 4: Simplify right side
    19,725.90x = 293,212,885.21
  5. Step 5: Solve for x
    x = 293,212,885.21/19,725.90
  6. Step 6: Final answer
    x = 14,864.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.