Home / 21,057.76-29,058.96-11,626.30

Finding the Fourth Proportional to 21,057.76, 29,058.96 and 11,626.30

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Solution

The fourth proportional to 21,057.76, 29,058.96 and 11,626.30 is: 16,043.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,057.76 : 29,058.96 = 11,626.30 : x
  2. Step 2: Convert to fraction form
    21,057.76/29,058.96 = 11,626.30/x
  3. Step 3: Cross multiply
    21,057.76x = 29,058.96 × 11,626.30
  4. Step 4: Simplify right side
    21,057.76x = 337,848,186.65
  5. Step 5: Solve for x
    x = 337,848,186.65/21,057.76
  6. Step 6: Final answer
    x = 16,043.88

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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.