Home / 21,189.16-29,241.30-11,758.60

Finding the Fourth Proportional to 21,189.16, 29,241.30 and 11,758.60

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Solution

The fourth proportional to 21,189.16, 29,241.30 and 11,758.60 is: 16,227.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,189.16 : 29,241.30 = 11,758.60 : x
  2. Step 2: Convert to fraction form
    21,189.16/29,241.30 = 11,758.60/x
  3. Step 3: Cross multiply
    21,189.16x = 29,241.30 × 11,758.60
  4. Step 4: Simplify right side
    21,189.16x = 343,836,750.18
  5. Step 5: Solve for x
    x = 343,836,750.18/21,189.16
  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.