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Finding the Fourth Proportional to 19,907.56, 29,965.03 and 16,900.84

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Solution

The fourth proportional to 19,907.56, 29,965.03 and 16,900.84 is: 25,439.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.56 : 29,965.03 = 16,900.84 : x
  2. Step 2: Convert to fraction form
    19,907.56/29,965.03 = 16,900.84/x
  3. Step 3: Cross multiply
    19,907.56x = 29,965.03 × 16,900.84
  4. Step 4: Simplify right side
    19,907.56x = 506,434,177.63
  5. Step 5: Solve for x
    x = 506,434,177.63/19,907.56
  6. Step 6: Final answer
    x = 25,439.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.