Home / 18,618.15-25,684.49-16,495.85

Finding the Fourth Proportional to 18,618.15, 25,684.49 and 16,495.85

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Solution

The fourth proportional to 18,618.15, 25,684.49 and 16,495.85 is: 22,756.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.15 : 25,684.49 = 16,495.85 : x
  2. Step 2: Convert to fraction form
    18,618.15/25,684.49 = 16,495.85/x
  3. Step 3: Cross multiply
    18,618.15x = 25,684.49 × 16,495.85
  4. Step 4: Simplify right side
    18,618.15x = 423,687,283.46
  5. Step 5: Solve for x
    x = 423,687,283.46/18,618.15
  6. Step 6: Final answer
    x = 22,756.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.