Home / 19,739.91-27,241.43-10,787.79

Finding the Fourth Proportional to 19,739.91, 27,241.43 and 10,787.79

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Solution

The fourth proportional to 19,739.91, 27,241.43 and 10,787.79 is: 14,887.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.91 : 27,241.43 = 10,787.79 : x
  2. Step 2: Convert to fraction form
    19,739.91/27,241.43 = 10,787.79/x
  3. Step 3: Cross multiply
    19,739.91x = 27,241.43 × 10,787.79
  4. Step 4: Simplify right side
    19,739.91x = 293,874,758.04
  5. Step 5: Solve for x
    x = 293,874,758.04/19,739.91
  6. Step 6: Final answer
    x = 14,887.34

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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.