Home / 25,992.81-38,993.31-11,205.90

Finding the Fourth Proportional to 25,992.81, 38,993.31 and 11,205.90

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Solution

The fourth proportional to 25,992.81, 38,993.31 and 11,205.90 is: 16,810.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,992.81 : 38,993.31 = 11,205.90 : x
  2. Step 2: Convert to fraction form
    25,992.81/38,993.31 = 11,205.90/x
  3. Step 3: Cross multiply
    25,992.81x = 38,993.31 × 11,205.90
  4. Step 4: Simplify right side
    25,992.81x = 436,955,132.53
  5. Step 5: Solve for x
    x = 436,955,132.53/25,992.81
  6. Step 6: Final answer
    x = 16,810.62

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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.