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Finding the Fourth Proportional to 28,227.71, 42,361.01 and 9,759.71

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Solution

The fourth proportional to 28,227.71, 42,361.01 and 9,759.71 is: 14,646.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,227.71 : 42,361.01 = 9,759.71 : x
  2. Step 2: Convert to fraction form
    28,227.71/42,361.01 = 9,759.71/x
  3. Step 3: Cross multiply
    28,227.71x = 42,361.01 × 9,759.71
  4. Step 4: Simplify right side
    28,227.71x = 413,431,172.91
  5. Step 5: Solve for x
    x = 413,431,172.91/28,227.71
  6. Step 6: Final answer
    x = 14,646.29

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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.