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Finding the Fourth Proportional to 28,737.62, 43,106.43 and 7,960.58

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Solution

The fourth proportional to 28,737.62, 43,106.43 and 7,960.58 is: 11,940.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.62 : 43,106.43 = 7,960.58 : x
  2. Step 2: Convert to fraction form
    28,737.62/43,106.43 = 7,960.58/x
  3. Step 3: Cross multiply
    28,737.62x = 43,106.43 × 7,960.58
  4. Step 4: Simplify right side
    28,737.62x = 343,152,184.53
  5. Step 5: Solve for x
    x = 343,152,184.53/28,737.62
  6. Step 6: Final answer
    x = 11,940.87

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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.