Home / 19,740.13-27,241.31-10,787.69

Finding the Fourth Proportional to 19,740.13, 27,241.31 and 10,787.69

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Solution

The fourth proportional to 19,740.13, 27,241.31 and 10,787.69 is: 14,886.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.13 : 27,241.31 = 10,787.69 : x
  2. Step 2: Convert to fraction form
    19,740.13/27,241.31 = 10,787.69/x
  3. Step 3: Cross multiply
    19,740.13x = 27,241.31 × 10,787.69
  4. Step 4: Simplify right side
    19,740.13x = 293,870,698.24
  5. Step 5: Solve for x
    x = 293,870,698.24/19,740.13
  6. Step 6: Final answer
    x = 14,886.97

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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.