Home / 21,189.18-29,241.27-11,758.62

Finding the Fourth Proportional to 21,189.18, 29,241.27 and 11,758.62

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Solution

The fourth proportional to 21,189.18, 29,241.27 and 11,758.62 is: 16,227.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,189.18 : 29,241.27 = 11,758.62 : x
  2. Step 2: Convert to fraction form
    21,189.18/29,241.27 = 11,758.62/x
  3. Step 3: Cross multiply
    21,189.18x = 29,241.27 × 11,758.62
  4. Step 4: Simplify right side
    21,189.18x = 343,836,982.25
  5. Step 5: Solve for x
    x = 343,836,982.25/21,189.18
  6. Step 6: Final answer
    x = 16,227.01

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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.