Home / 20,085.68-30,131.34-8,396.24

Finding the Fourth Proportional to 20,085.68, 30,131.34 and 8,396.24

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Solution

The fourth proportional to 20,085.68, 30,131.34 and 8,396.24 is: 12,595.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.68 : 30,131.34 = 8,396.24 : x
  2. Step 2: Convert to fraction form
    20,085.68/30,131.34 = 8,396.24/x
  3. Step 3: Cross multiply
    20,085.68x = 30,131.34 × 8,396.24
  4. Step 4: Simplify right side
    20,085.68x = 252,989,962.16
  5. Step 5: Solve for x
    x = 252,989,962.16/20,085.68
  6. Step 6: Final answer
    x = 12,595.54

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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.