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Finding the Fourth Proportional to 19,907.70, 27,326.01 and 17,619.72

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Solution

The fourth proportional to 19,907.70, 27,326.01 and 17,619.72 is: 24,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.70 : 27,326.01 = 17,619.72 : x
  2. Step 2: Convert to fraction form
    19,907.70/27,326.01 = 17,619.72/x
  3. Step 3: Cross multiply
    19,907.70x = 27,326.01 × 17,619.72
  4. Step 4: Simplify right side
    19,907.70x = 481,476,644.92
  5. Step 5: Solve for x
    x = 481,476,644.92/19,907.70
  6. Step 6: Final answer
    x = 24,185.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.