Home / 25,405.75-38,132.02-12,934.69

Finding the Fourth Proportional to 25,405.75, 38,132.02 and 12,934.69

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Solution

The fourth proportional to 25,405.75, 38,132.02 and 12,934.69 is: 19,413.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,405.75 : 38,132.02 = 12,934.69 : x
  2. Step 2: Convert to fraction form
    25,405.75/38,132.02 = 12,934.69/x
  3. Step 3: Cross multiply
    25,405.75x = 38,132.02 × 12,934.69
  4. Step 4: Simplify right side
    25,405.75x = 493,225,705.85
  5. Step 5: Solve for x
    x = 493,225,705.85/25,405.75
  6. Step 6: Final answer
    x = 19,413.94

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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.