Home / 36,123.18-49,855.41-20,806.89

Finding the Fourth Proportional to 36,123.18, 49,855.41 and 20,806.89

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Solution

The fourth proportional to 36,123.18, 49,855.41 and 20,806.89 is: 28,716.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,123.18 : 49,855.41 = 20,806.89 : x
  2. Step 2: Convert to fraction form
    36,123.18/49,855.41 = 20,806.89/x
  3. Step 3: Cross multiply
    36,123.18x = 49,855.41 × 20,806.89
  4. Step 4: Simplify right side
    36,123.18x = 1,037,336,031.77
  5. Step 5: Solve for x
    x = 1,037,336,031.77/36,123.18
  6. Step 6: Final answer
    x = 28,716.63

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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.