Home / 20,453.85-30,617.55-17,464.95

Finding the Fourth Proportional to 20,453.85, 30,617.55 and 17,464.95

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Solution

The fourth proportional to 20,453.85, 30,617.55 and 17,464.95 is: 26,143.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453.85 : 30,617.55 = 17,464.95 : x
  2. Step 2: Convert to fraction form
    20,453.85/30,617.55 = 17,464.95/x
  3. Step 3: Cross multiply
    20,453.85x = 30,617.55 × 17,464.95
  4. Step 4: Simplify right side
    20,453.85x = 534,733,979.87
  5. Step 5: Solve for x
    x = 534,733,979.87/20,453.85
  6. Step 6: Final answer
    x = 26,143.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.