Home / 20,577.87-28,397.34-11,628.27

Finding the Fourth Proportional to 20,577.87, 28,397.34 and 11,628.27

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Solution

The fourth proportional to 20,577.87, 28,397.34 and 11,628.27 is: 16,046.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.87 : 28,397.34 = 11,628.27 : x
  2. Step 2: Convert to fraction form
    20,577.87/28,397.34 = 11,628.27/x
  3. Step 3: Cross multiply
    20,577.87x = 28,397.34 × 11,628.27
  4. Step 4: Simplify right side
    20,577.87x = 330,211,936.80
  5. Step 5: Solve for x
    x = 330,211,936.80/20,577.87
  6. Step 6: Final answer
    x = 16,046.94

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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.