Home / 18,730.90-28,082.31-11,333.85

Finding the Fourth Proportional to 18,730.90, 28,082.31 and 11,333.85

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Solution

The fourth proportional to 18,730.90, 28,082.31 and 11,333.85 is: 16,992.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.90 : 28,082.31 = 11,333.85 : x
  2. Step 2: Convert to fraction form
    18,730.90/28,082.31 = 11,333.85/x
  3. Step 3: Cross multiply
    18,730.90x = 28,082.31 × 11,333.85
  4. Step 4: Simplify right side
    18,730.90x = 318,280,689.19
  5. Step 5: Solve for x
    x = 318,280,689.19/18,730.90
  6. Step 6: Final answer
    x = 16,992.28

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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.