Home / 18,868.95-28,286.82-14,686.11

Finding the Fourth Proportional to 18,868.95, 28,286.82 and 14,686.11

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Solution

The fourth proportional to 18,868.95, 28,286.82 and 14,686.11 is: 22,016.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.95 : 28,286.82 = 14,686.11 : x
  2. Step 2: Convert to fraction form
    18,868.95/28,286.82 = 14,686.11/x
  3. Step 3: Cross multiply
    18,868.95x = 28,286.82 × 14,686.11
  4. Step 4: Simplify right side
    18,868.95x = 415,423,350.07
  5. Step 5: Solve for x
    x = 415,423,350.07/18,868.95
  6. Step 6: Final answer
    x = 22,016.24

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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.