Home / 38,524.10-57,786.15-18,815.30

Finding the Fourth Proportional to 38,524.10, 57,786.15 and 18,815.30

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Solution

The fourth proportional to 38,524.10, 57,786.15 and 18,815.30 is: 28,222.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,524.10 : 57,786.15 = 18,815.30 : x
  2. Step 2: Convert to fraction form
    38,524.10/57,786.15 = 18,815.30/x
  3. Step 3: Cross multiply
    38,524.10x = 57,786.15 × 18,815.30
  4. Step 4: Simplify right side
    38,524.10x = 1,087,263,748.10
  5. Step 5: Solve for x
    x = 1,087,263,748.10/38,524.10
  6. Step 6: Final answer
    x = 28,222.95

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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.