Home / 20,457.26-30,688.92-6,418.44

Finding the Fourth Proportional to 20,457.26, 30,688.92 and 6,418.44

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Solution

The fourth proportional to 20,457.26, 30,688.92 and 6,418.44 is: 9,628.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,457.26 : 30,688.92 = 6,418.44 : x
  2. Step 2: Convert to fraction form
    20,457.26/30,688.92 = 6,418.44/x
  3. Step 3: Cross multiply
    20,457.26x = 30,688.92 × 6,418.44
  4. Step 4: Simplify right side
    20,457.26x = 196,974,806.15
  5. Step 5: Solve for x
    x = 196,974,806.15/20,457.26
  6. Step 6: Final answer
    x = 9,628.60

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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.