Home / 18,974.43-28,477.13-13,433.15

Finding the Fourth Proportional to 18,974.43, 28,477.13 and 13,433.15

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Solution

The fourth proportional to 18,974.43, 28,477.13 and 13,433.15 is: 20,160.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.43 : 28,477.13 = 13,433.15 : x
  2. Step 2: Convert to fraction form
    18,974.43/28,477.13 = 13,433.15/x
  3. Step 3: Cross multiply
    18,974.43x = 28,477.13 × 13,433.15
  4. Step 4: Simplify right side
    18,974.43x = 382,537,558.86
  5. Step 5: Solve for x
    x = 382,537,558.86/18,974.43
  6. Step 6: Final answer
    x = 20,160.69

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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.