Home / 20,583.82-28,404.27-11,631.70

Finding the Fourth Proportional to 20,583.82, 28,404.27 and 11,631.70

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Solution

The fourth proportional to 20,583.82, 28,404.27 and 11,631.70 is: 16,050.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.82 : 28,404.27 = 11,631.70 : x
  2. Step 2: Convert to fraction form
    20,583.82/28,404.27 = 11,631.70/x
  3. Step 3: Cross multiply
    20,583.82x = 28,404.27 × 11,631.70
  4. Step 4: Simplify right side
    20,583.82x = 330,389,947.36
  5. Step 5: Solve for x
    x = 330,389,947.36/20,583.82
  6. Step 6: Final answer
    x = 16,050.95

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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.