Home / 19,739.92-27,239.94-10,787.50

Finding the Fourth Proportional to 19,739.92, 27,239.94 and 10,787.50

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Solution

The fourth proportional to 19,739.92, 27,239.94 and 10,787.50 is: 14,886.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.92 : 27,239.94 = 10,787.50 : x
  2. Step 2: Convert to fraction form
    19,739.92/27,239.94 = 10,787.50/x
  3. Step 3: Cross multiply
    19,739.92x = 27,239.94 × 10,787.50
  4. Step 4: Simplify right side
    19,739.92x = 293,850,852.75
  5. Step 5: Solve for x
    x = 293,850,852.75/19,739.92
  6. Step 6: Final answer
    x = 14,886.12

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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.