Home / 20,136.23-30,204.36-7,653.32

Finding the Fourth Proportional to 20,136.23, 30,204.36 and 7,653.32

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Solution

The fourth proportional to 20,136.23, 30,204.36 and 7,653.32 is: 11,479.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.23 : 30,204.36 = 7,653.32 : x
  2. Step 2: Convert to fraction form
    20,136.23/30,204.36 = 7,653.32/x
  3. Step 3: Cross multiply
    20,136.23x = 30,204.36 × 7,653.32
  4. Step 4: Simplify right side
    20,136.23x = 231,163,632.48
  5. Step 5: Solve for x
    x = 231,163,632.48/20,136.23
  6. Step 6: Final answer
    x = 11,479.99

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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.