Home / 19,740.11-27,241.88-10,787.54

Finding the Fourth Proportional to 19,740.11, 27,241.88 and 10,787.54

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Solution

The fourth proportional to 19,740.11, 27,241.88 and 10,787.54 is: 14,887.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.11 : 27,241.88 = 10,787.54 : x
  2. Step 2: Convert to fraction form
    19,740.11/27,241.88 = 10,787.54/x
  3. Step 3: Cross multiply
    19,740.11x = 27,241.88 × 10,787.54
  4. Step 4: Simplify right side
    19,740.11x = 293,872,680.03
  5. Step 5: Solve for x
    x = 293,872,680.03/19,740.11
  6. Step 6: Final answer
    x = 14,887.09

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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.