Home / 20,250.23-30,343.25-12,356.21

Finding the Fourth Proportional to 20,250.23, 30,343.25 and 12,356.21

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Solution

The fourth proportional to 20,250.23, 30,343.25 and 12,356.21 is: 18,514.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.23 : 30,343.25 = 12,356.21 : x
  2. Step 2: Convert to fraction form
    20,250.23/30,343.25 = 12,356.21/x
  3. Step 3: Cross multiply
    20,250.23x = 30,343.25 × 12,356.21
  4. Step 4: Simplify right side
    20,250.23x = 374,927,355.59
  5. Step 5: Solve for x
    x = 374,927,355.59/20,250.23
  6. Step 6: Final answer
    x = 18,514.73

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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.