Home / 18,958.93-28,453.88-13,417.65

Finding the Fourth Proportional to 18,958.93, 28,453.88 and 13,417.65

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Solution

The fourth proportional to 18,958.93, 28,453.88 and 13,417.65 is: 20,137.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.93 : 28,453.88 = 13,417.65 : x
  2. Step 2: Convert to fraction form
    18,958.93/28,453.88 = 13,417.65/x
  3. Step 3: Cross multiply
    18,958.93x = 28,453.88 × 13,417.65
  4. Step 4: Simplify right side
    18,958.93x = 381,784,236.53
  5. Step 5: Solve for x
    x = 381,784,236.53/18,958.93
  6. Step 6: Final answer
    x = 20,137.44

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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.