Home / 20,767.26-28,655.44-12,268.20

Finding the Fourth Proportional to 20,767.26, 28,655.44 and 12,268.20

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Solution

The fourth proportional to 20,767.26, 28,655.44 and 12,268.20 is: 16,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.26 : 28,655.44 = 12,268.20 : x
  2. Step 2: Convert to fraction form
    20,767.26/28,655.44 = 12,268.20/x
  3. Step 3: Cross multiply
    20,767.26x = 28,655.44 × 12,268.20
  4. Step 4: Simplify right side
    20,767.26x = 351,550,669.01
  5. Step 5: Solve for x
    x = 351,550,669.01/20,767.26
  6. Step 6: Final answer
    x = 16,928.12

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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.