Home / 25,209.12-34,795-15,138

Finding the Fourth Proportional to 25,209.12, 34,795 and 15,138

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Solution

The fourth proportional to 25,209.12, 34,795 and 15,138 is: 20,894.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,209.12 : 34,795 = 15,138 : x
  2. Step 2: Convert to fraction form
    25,209.12/34,795 = 15,138/x
  3. Step 3: Cross multiply
    25,209.12x = 34,795 × 15,138
  4. Step 4: Simplify right side
    25,209.12x = 526,726,710
  5. Step 5: Solve for x
    x = 526,726,710/25,209.12
  6. Step 6: Final answer
    x = 20,894.29

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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.