Home / 21,231.74-29,299.59-11,800.10

Finding the Fourth Proportional to 21,231.74, 29,299.59 and 11,800.10

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Solution

The fourth proportional to 21,231.74, 29,299.59 and 11,800.10 is: 16,284.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,231.74 : 29,299.59 = 11,800.10 : x
  2. Step 2: Convert to fraction form
    21,231.74/29,299.59 = 11,800.10/x
  3. Step 3: Cross multiply
    21,231.74x = 29,299.59 × 11,800.10
  4. Step 4: Simplify right side
    21,231.74x = 345,738,091.96
  5. Step 5: Solve for x
    x = 345,738,091.96/21,231.74
  6. Step 6: Final answer
    x = 16,284.02

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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.