Home / 28,900.35-43,350.52-8,123.85

Finding the Fourth Proportional to 28,900.35, 43,350.52 and 8,123.85

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Solution

The fourth proportional to 28,900.35, 43,350.52 and 8,123.85 is: 12,185.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.35 : 43,350.52 = 8,123.85 : x
  2. Step 2: Convert to fraction form
    28,900.35/43,350.52 = 8,123.85/x
  3. Step 3: Cross multiply
    28,900.35x = 43,350.52 × 8,123.85
  4. Step 4: Simplify right side
    28,900.35x = 352,172,864.53
  5. Step 5: Solve for x
    x = 352,172,864.53/28,900.35
  6. Step 6: Final answer
    x = 12,185.77

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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.