Home / 18,183.72-25,087.50-14,820.75

Finding the Fourth Proportional to 18,183.72, 25,087.50 and 14,820.75

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Solution

The fourth proportional to 18,183.72, 25,087.50 and 14,820.75 is: 20,447.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,183.72 : 25,087.50 = 14,820.75 : x
  2. Step 2: Convert to fraction form
    18,183.72/25,087.50 = 14,820.75/x
  3. Step 3: Cross multiply
    18,183.72x = 25,087.50 × 14,820.75
  4. Step 4: Simplify right side
    18,183.72x = 371,815,565.63
  5. Step 5: Solve for x
    x = 371,815,565.63/18,183.72
  6. Step 6: Final answer
    x = 20,447.72

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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.