Home / 49,251.21-73,876.82-12,315.21

Finding the Fourth Proportional to 49,251.21, 73,876.82 and 12,315.21

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Solution

The fourth proportional to 49,251.21, 73,876.82 and 12,315.21 is: 18,472.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,251.21 : 73,876.82 = 12,315.21 : x
  2. Step 2: Convert to fraction form
    49,251.21/73,876.82 = 12,315.21/x
  3. Step 3: Cross multiply
    49,251.21x = 73,876.82 × 12,315.21
  4. Step 4: Simplify right side
    49,251.21x = 909,808,552.43
  5. Step 5: Solve for x
    x = 909,808,552.43/49,251.21
  6. Step 6: Final answer
    x = 18,472.82

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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.