Home / 25,895.92-38,760.32-13,398.74

Finding the Fourth Proportional to 25,895.92, 38,760.32 and 13,398.74

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Solution

The fourth proportional to 25,895.92, 38,760.32 and 13,398.74 is: 20,054.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,895.92 : 38,760.32 = 13,398.74 : x
  2. Step 2: Convert to fraction form
    25,895.92/38,760.32 = 13,398.74/x
  3. Step 3: Cross multiply
    25,895.92x = 38,760.32 × 13,398.74
  4. Step 4: Simplify right side
    25,895.92x = 519,339,450.00
  5. Step 5: Solve for x
    x = 519,339,450.00/25,895.92
  6. Step 6: Final answer
    x = 20,054.88

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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.