Home / 25,419.62-38,115.46-20,188.14

Finding the Fourth Proportional to 25,419.62, 38,115.46 and 20,188.14

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Solution

The fourth proportional to 25,419.62, 38,115.46 and 20,188.14 is: 30,271.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,419.62 : 38,115.46 = 20,188.14 : x
  2. Step 2: Convert to fraction form
    25,419.62/38,115.46 = 20,188.14/x
  3. Step 3: Cross multiply
    25,419.62x = 38,115.46 × 20,188.14
  4. Step 4: Simplify right side
    25,419.62x = 769,480,124.95
  5. Step 5: Solve for x
    x = 769,480,124.95/25,419.62
  6. Step 6: Final answer
    x = 30,271.11

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1.5x scale

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.