Home / 21,189.14-29,241.03-11,757.70

Finding the Fourth Proportional to 21,189.14, 29,241.03 and 11,757.70

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Solution

The fourth proportional to 21,189.14, 29,241.03 and 11,757.70 is: 16,225.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,189.14 : 29,241.03 = 11,757.70 : x
  2. Step 2: Convert to fraction form
    21,189.14/29,241.03 = 11,757.70/x
  3. Step 3: Cross multiply
    21,189.14x = 29,241.03 × 11,757.70
  4. Step 4: Simplify right side
    21,189.14x = 343,807,258.43
  5. Step 5: Solve for x
    x = 343,807,258.43/21,189.14
  6. Step 6: Final answer
    x = 16,225.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.