Home / 25,380.54-35,029.18-15,310.43

Finding the Fourth Proportional to 25,380.54, 35,029.18 and 15,310.43

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Solution

The fourth proportional to 25,380.54, 35,029.18 and 15,310.43 is: 21,130.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,380.54 : 35,029.18 = 15,310.43 : x
  2. Step 2: Convert to fraction form
    25,380.54/35,029.18 = 15,310.43/x
  3. Step 3: Cross multiply
    25,380.54x = 35,029.18 × 15,310.43
  4. Step 4: Simplify right side
    25,380.54x = 536,311,808.35
  5. Step 5: Solve for x
    x = 536,311,808.35/25,380.54
  6. Step 6: Final answer
    x = 21,130.83

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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.