Home / 28,520.00-39,357.68-15,944.75

Finding the Fourth Proportional to 28,520.00, 39,357.68 and 15,944.75

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Solution

The fourth proportional to 28,520.00, 39,357.68 and 15,944.75 is: 22,003.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,520.00 : 39,357.68 = 15,944.75 : x
  2. Step 2: Convert to fraction form
    28,520.00/39,357.68 = 15,944.75/x
  3. Step 3: Cross multiply
    28,520.00x = 39,357.68 × 15,944.75
  4. Step 4: Simplify right side
    28,520.00x = 627,548,091.67
  5. Step 5: Solve for x
    x = 627,548,091.67/28,520.00
  6. Step 6: Final answer
    x = 22,003.79

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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.