Home / 18,930.66-28,421.11-16,175.04

Finding the Fourth Proportional to 18,930.66, 28,421.11 and 16,175.04

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Solution

The fourth proportional to 18,930.66, 28,421.11 and 16,175.04 is: 24,284.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.66 : 28,421.11 = 16,175.04 : x
  2. Step 2: Convert to fraction form
    18,930.66/28,421.11 = 16,175.04/x
  3. Step 3: Cross multiply
    18,930.66x = 28,421.11 × 16,175.04
  4. Step 4: Simplify right side
    18,930.66x = 459,712,591.09
  5. Step 5: Solve for x
    x = 459,712,591.09/18,930.66
  6. Step 6: Final answer
    x = 24,284.02

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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.