Home / 20,136.10-30,197.30-7,653.12

Finding the Fourth Proportional to 20,136.10, 30,197.30 and 7,653.12

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Solution

The fourth proportional to 20,136.10, 30,197.30 and 7,653.12 is: 11,477.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.10 : 30,197.30 = 7,653.12 : x
  2. Step 2: Convert to fraction form
    20,136.10/30,197.30 = 7,653.12/x
  3. Step 3: Cross multiply
    20,136.10x = 30,197.30 × 7,653.12
  4. Step 4: Simplify right side
    20,136.10x = 231,103,560.58
  5. Step 5: Solve for x
    x = 231,103,560.58/20,136.10
  6. Step 6: Final answer
    x = 11,477.08

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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.