Home / 20,125.75-30,190.29-6,274.75

Finding the Fourth Proportional to 20,125.75, 30,190.29 and 6,274.75

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Solution

The fourth proportional to 20,125.75, 30,190.29 and 6,274.75 is: 9,412.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.75 : 30,190.29 = 6,274.75 : x
  2. Step 2: Convert to fraction form
    20,125.75/30,190.29 = 6,274.75/x
  3. Step 3: Cross multiply
    20,125.75x = 30,190.29 × 6,274.75
  4. Step 4: Simplify right side
    20,125.75x = 189,436,522.18
  5. Step 5: Solve for x
    x = 189,436,522.18/20,125.75
  6. Step 6: Final answer
    x = 9,412.64

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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.