Home / 20,708.82-28,577.25-11,756.16

Finding the Fourth Proportional to 20,708.82, 28,577.25 and 11,756.16

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Solution

The fourth proportional to 20,708.82, 28,577.25 and 11,756.16 is: 16,222.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708.82 : 28,577.25 = 11,756.16 : x
  2. Step 2: Convert to fraction form
    20,708.82/28,577.25 = 11,756.16/x
  3. Step 3: Cross multiply
    20,708.82x = 28,577.25 × 11,756.16
  4. Step 4: Simplify right side
    20,708.82x = 335,958,723.36
  5. Step 5: Solve for x
    x = 335,958,723.36/20,708.82
  6. Step 6: Final answer
    x = 16,222.98

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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.