Home / 19,629.62-29,440.20-6,478.88

Finding the Fourth Proportional to 19,629.62, 29,440.20 and 6,478.88

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Solution

The fourth proportional to 19,629.62, 29,440.20 and 6,478.88 is: 9,716.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.62 : 29,440.20 = 6,478.88 : x
  2. Step 2: Convert to fraction form
    19,629.62/29,440.20 = 6,478.88/x
  3. Step 3: Cross multiply
    19,629.62x = 29,440.20 × 6,478.88
  4. Step 4: Simplify right side
    19,629.62x = 190,739,522.98
  5. Step 5: Solve for x
    x = 190,739,522.98/19,629.62
  6. Step 6: Final answer
    x = 9,716.92

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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.