Home / 25,908.88-38,866.96-12,761.36

Finding the Fourth Proportional to 25,908.88, 38,866.96 and 12,761.36

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Solution

The fourth proportional to 25,908.88, 38,866.96 and 12,761.36 is: 19,143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,908.88 : 38,866.96 = 12,761.36 : x
  2. Step 2: Convert to fraction form
    25,908.88/38,866.96 = 12,761.36/x
  3. Step 3: Cross multiply
    25,908.88x = 38,866.96 × 12,761.36
  4. Step 4: Simplify right side
    25,908.88x = 495,995,268.67
  5. Step 5: Solve for x
    x = 495,995,268.67/25,908.88
  6. Step 6: Final answer
    x = 19,143.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.