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Finding the Fourth Proportional to 28,514.44, 42,771.68 and 7,737.94

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Solution

The fourth proportional to 28,514.44, 42,771.68 and 7,737.94 is: 11,606.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.44 : 42,771.68 = 7,737.94 : x
  2. Step 2: Convert to fraction form
    28,514.44/42,771.68 = 7,737.94/x
  3. Step 3: Cross multiply
    28,514.44x = 42,771.68 × 7,737.94
  4. Step 4: Simplify right side
    28,514.44x = 330,964,440.99
  5. Step 5: Solve for x
    x = 330,964,440.99/28,514.44
  6. Step 6: Final answer
    x = 11,606.91

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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.