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Finding the Fourth Proportional to 19,052.70, 28,579.05 and 7,955.70

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Solution

The fourth proportional to 19,052.70, 28,579.05 and 7,955.70 is: 11,933.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,052.70 : 28,579.05 = 7,955.70 : x
  2. Step 2: Convert to fraction form
    19,052.70/28,579.05 = 7,955.70/x
  3. Step 3: Cross multiply
    19,052.70x = 28,579.05 × 7,955.70
  4. Step 4: Simplify right side
    19,052.70x = 227,366,348.09
  5. Step 5: Solve for x
    x = 227,366,348.09/19,052.70
  6. Step 6: Final answer
    x = 11,933.55

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Similar ratio
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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.