Home / 28,913.45-43,370.18-8,136.95

Finding the Fourth Proportional to 28,913.45, 43,370.18 and 8,136.95

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Solution

The fourth proportional to 28,913.45, 43,370.18 and 8,136.95 is: 12,205.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.45 : 43,370.18 = 8,136.95 : x
  2. Step 2: Convert to fraction form
    28,913.45/43,370.18 = 8,136.95/x
  3. Step 3: Cross multiply
    28,913.45x = 43,370.18 × 8,136.95
  4. Step 4: Simplify right side
    28,913.45x = 352,900,728.62
  5. Step 5: Solve for x
    x = 352,900,728.62/28,913.45
  6. Step 6: Final answer
    x = 12,205.42

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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.