Home / 25,336.90-38,028.60-12,865.60

Finding the Fourth Proportional to 25,336.90, 38,028.60 and 12,865.60

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Solution

The fourth proportional to 25,336.90, 38,028.60 and 12,865.60 is: 19,310.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,336.90 : 38,028.60 = 12,865.60 : x
  2. Step 2: Convert to fraction form
    25,336.90/38,028.60 = 12,865.60/x
  3. Step 3: Cross multiply
    25,336.90x = 38,028.60 × 12,865.60
  4. Step 4: Simplify right side
    25,336.90x = 489,260,756.16
  5. Step 5: Solve for x
    x = 489,260,756.16/25,336.90
  6. Step 6: Final answer
    x = 19,310.21

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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.