Home / 21,189.18-29,241-11,629.23

Finding the Fourth Proportional to 21,189.18, 29,241 and 11,629.23

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Solution

The fourth proportional to 21,189.18, 29,241 and 11,629.23 is: 16,048.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,189.18 : 29,241 = 11,629.23 : x
  2. Step 2: Convert to fraction form
    21,189.18/29,241 = 11,629.23/x
  3. Step 3: Cross multiply
    21,189.18x = 29,241 × 11,629.23
  4. Step 4: Simplify right side
    21,189.18x = 340,050,314.43
  5. Step 5: Solve for x
    x = 340,050,314.43/21,189.18
  6. Step 6: Final answer
    x = 16,048.30

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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.