Home / 20,674.07-28,536.72-12,175.60

Finding the Fourth Proportional to 20,674.07, 28,536.72 and 12,175.60

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Solution

The fourth proportional to 20,674.07, 28,536.72 and 12,175.60 is: 16,806.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.07 : 28,536.72 = 12,175.60 : x
  2. Step 2: Convert to fraction form
    20,674.07/28,536.72 = 12,175.60/x
  3. Step 3: Cross multiply
    20,674.07x = 28,536.72 × 12,175.60
  4. Step 4: Simplify right side
    20,674.07x = 347,451,688.03
  5. Step 5: Solve for x
    x = 347,451,688.03/20,674.07
  6. Step 6: Final answer
    x = 16,806.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.