Home / 20,716.67-28,591.99-11,765.00

Finding the Fourth Proportional to 20,716.67, 28,591.99 and 11,765.00

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Solution

The fourth proportional to 20,716.67, 28,591.99 and 11,765.00 is: 16,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716.67 : 28,591.99 = 11,765.00 : x
  2. Step 2: Convert to fraction form
    20,716.67/28,591.99 = 11,765.00/x
  3. Step 3: Cross multiply
    20,716.67x = 28,591.99 × 11,765.00
  4. Step 4: Simplify right side
    20,716.67x = 336,384,804.42
  5. Step 5: Solve for x
    x = 336,384,804.42/20,716.67
  6. Step 6: Final answer
    x = 16,237.40

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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.