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Finding the Fourth Proportional to 17,921.19, 26,839.03 and 10,408.84

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Solution

The fourth proportional to 17,921.19, 26,839.03 and 10,408.84 is: 15,588.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.19 : 26,839.03 = 10,408.84 : x
  2. Step 2: Convert to fraction form
    17,921.19/26,839.03 = 10,408.84/x
  3. Step 3: Cross multiply
    17,921.19x = 26,839.03 × 10,408.84
  4. Step 4: Simplify right side
    17,921.19x = 279,363,169.03
  5. Step 5: Solve for x
    x = 279,363,169.03/17,921.19
  6. Step 6: Final answer
    x = 15,588.43

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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.