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Finding the Fourth Proportional to 28,519.65, 42,784.61 and 9,794.84

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Solution

The fourth proportional to 28,519.65, 42,784.61 and 9,794.84 is: 14,694.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.65 : 42,784.61 = 9,794.84 : x
  2. Step 2: Convert to fraction form
    28,519.65/42,784.61 = 9,794.84/x
  3. Step 3: Cross multiply
    28,519.65x = 42,784.61 × 9,794.84
  4. Step 4: Simplify right side
    28,519.65x = 419,068,146.52
  5. Step 5: Solve for x
    x = 419,068,146.52/28,519.65
  6. Step 6: Final answer
    x = 14,694.01

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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.